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50% voted 1 lmao wtf
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yes if u do acc to BODMAS
its poorly writen it can be both 1 and 9. its just ragebait to get people to write about how stupid the other party is while the profiles posting this profit from traction generated by responses
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But ÷ can indicate fraction like this too
6
—
2(2+1)
Simplified into 3/3 -> 1
Or it also #63
This whole equation is poorly written and I can't imagine something like this ever being on a professionally made test or some kind of competition. It looks more like poorly made simplification by a middle schooler if anything else.
You can logically end up with both solutions.
But all of this doesn't matter because it's still a ragebait.
/Closed
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Yea, basic maths, but if your result is 9, then you had to express the problem as
(6/2)*(1+2)...
The problem is basically 6/2x not (6/2)*x
Edit: So we understand. We have the "2x" as a group together, not that we actually account for the unknown, as it's a example how it is taken not the problem itself.
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The way the expression is type is supposed to be:
6
----------
2*(1+2)
And in no way like this you are going to get 9. And this is the exactly what's the expression supposed to do, it's done like this so people argue who is dumber.
In test you will get either what I typed. or:
1) (6/2) * (1+2)
2) 6 / [2*(2+1)]
In all of these you exactly know the answer.
However in what is written I go with first choice as there's the symbol of "÷"
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No it's not the same. (6/2) * (1+2) and 6/2 * (1+2)
must be
(3)*(3)
and
6/2*(3)
Those are 2 different expressions that aren't the same, but SHOULD lead to the same conclusion. But they doesn't as you can see this thread (Because the 2nd is just written badly). Especially when the "÷" is used, where for example I was taught that left side of expression is upper dot & the right side is bottom one.
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found the ragebaited angry boy xDDDD
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"I graduated in engineer" Sure you did buddy.
In my country, a russel group gender studies student knows more about maths than you do.
Go see #142 or en.wikipedia.org/wiki/Order_of_operation.. to enlighten yourself.
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Yeah I did, and every single mathematician will tell you your wrong.
nytimes.com/2019/08/02/science/math-equa..
But sure your wikipedia article that dosn't detail the case when their is both a multiplication and a division and your own point are clearly better than a mathematician.
One day you will maybe get out of middle school and understand that even if it's poorly writen there's nothing ambiguous and according to any maths system used actually, multiplication and divison have the same order of importance and when both need to be calculated it's from left to right.
btw here is the wikipedia article about order of operation, in french which is like yours but that details the case, and funny enough, when they detail the case, they explain why you are wrong.
fr.wikipedia.org/wiki/Ordre_des_op%C3%A9..
nytimes.com/2019/08/02/science/math-equa..
article writen by a mathematician, but sure go ahead and prove him wrong
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You linked the paywalled version so that you think i wouldn't read it LOL
web.archive.org/web/20230719080219/https..
And what a surprise, if you bothered to actually read it instead of being a halfwit you would come to realise you are absolutely incorrect.
"PEMDAS is arbitrary. Furthermore, in my experience as a mathematician, expressions like 8÷2×4 look absurdly contrived. No professional mathematician would ever write something so obviously ambiguous."
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Nice 0/8 answer again. Read his article. He said 9 is the answer even if it's poorly writen, which surprisely enough, is what I say since the beginning.
Don't try to turn your point around, your point is "yes both are possible answer".
Every singe correct mathematician, the article I linked, the wikipedia you linked, everybody just tells that the correct answer is doing the division first even if it's poorly writen.
But yeah since you search the article to find 3 lines that were not even agreeing with your point I didn't expected much self reflexion
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If 6/2(1+2) is definitely 9 even if it's poorly written, why does my Casio outputs 1? And also several other calculators? Also, in a textbook of say, physics, if you see an one line expression written like F = mGR / nT (not a real formula, just an example), how would you interpret that? What about some term like 1/2a or 1/ab? Also look at this interesting result: wolframalpha.com/input?i=6%2Fab+for+a+%3..
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There is no point using a nuanced argument with this NPC, the reason for your calculator doing it a particular way is described in en.wikipedia.org/wiki/Order_of_operation.. under the Mnemonics section and Calculators section
Pretty sure this guy is just baiting because you'd have to have severely impaired reading comprehension not to understand that everything he or I has linked directly states that the expression is ambiguous and therefore has no answer unless you enforce arbitrary rules such as left to right or division before multiplication e.t.c.
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you clown you stopped answering a single of the argument I used however I debunked every single one of your """arguments"""" so stop baiting and don't talk if you have nothing to add. At least we're having an interesting discussion, opposed to the one with you where you showed 0 good argument so go sleep and let the real man talk
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It's funny that you're math understanding is so bad that you think I admitted I'm wrong. It just shows that you're too dumb to get the point and understand that we are not even discussing the same point.
Again, reread our discussion, it ended with me debunking one by one your arguments and reusing your own source to show how ignorant you were.
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Funny enough, I also have a casio and 6÷2(1+2) is equal to 9.
For the point, of the textbook, even if I doubt it to be written in a simple line, it's a question of convention. For basic calculus with only number, there's no doubt between mathematician and the answer is obvious for everybody. However simplicity in current maths allow and consider this error as acceptable. This point is detailed here :
fr.wikipedia.org/wiki/Ordre_des_op%C3%A9..
"Thus this 3/2x operation is in fact a simple unique division of the number “3” by the number “2x” and in no case can this way of seeing, widely used in the scientific community, serve as a reference or model in the calculation of 3/2(1+2) where here 2(1+2), which should in reality be written 2×(1+2), is indeed a calculation to be carried out and cannot be assimilated to the number “2x”"
It also answer your point about 1/2a and 1/ab, that wolfram alpha consider as 1/(2a) because majority of people write is like that because it is simplier to but fraction like that in wolfram alpha.
Here if you want to look at two interesting results :
wolframalpha.com/input?i2d=true&i=6%C3%B..
wolframalpha.com/input?i=6%2F3*3
Is is widely accepted that the symbol / can serve as the simplification of a fraction (when only letters are involved, not when there is only number), however with ÷ there is not an once of doubt.
Anyway that was nice to answer there was finally interesting arguments instead of malding british rant
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So I also went through all Calculus classes in my University. My problem with what you're saying is that I don't think this "problem" was ever a thing in our classes, simply because that's not how we write expressions. I just googled "multivariable calculus exercises" and the first result for me was this math.berkeley.edu/~cannizzo/Fa14_Math53/..
I didn't read everything, but I cannot see some sloppy usage of implied multiplication. The most I can see, which I expected, was something like dy/dx, which is so obvious because of how much we use that notation that we don't even wonder what does that mean. So I cannot say for certain what does 1/ab in Calculus mean simply because this was a non-existant problem for me.
But okay let's go back to precedence. I don't have a problem with a/b*c, I feel like its convention is pretty much universally left to right. I do with implied multiplication, which will depend on the context or which calculator/program I'm using. It's hard to put in a comment my whole opinion about it, but I kinda agree 90% with this video that I found if you're interested: youtu.be/4x-BcYCiKCk
So basically I'm on the "both answers are possible, but it really doesn't matter because it's just a design issue with the problem" team.
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Yeah I understand you point, and if for example the question was 8/2(x+2) I would agree that it would be ambiguous and poorly written however, I believe that with the ÷ sign and with numbers, there is no doubt, and I never found any computer/mathematician having an opposing view.
By looking at a history way to answer this, since the maths follow the ZFC axiom, and with more recent theory books that detailed actual mathematics, I believe that it is commonly accepted now that ÷ and * are left to right and that since the parentesis is a simplification of a multiplication, than it is forced to be 9.
The thing is that even if it's commonly accepted that 2/ab is 2/(ab) I believe that both ÷ sign and the fact that it's only number makes it so according to current maths there's not really a doubt about it.
And again, after watching the video, it is an error commonly accepted through science in general to write / or sometimes (I never saw it before the video on top) but ÷ written in the middle without parentesis when it comes to calculus and letters, but I believe that this never appears with number and I also believe that everyone agrees that it's a convention even if it's technically false.
Why are you wasting your time proving an obvious point to the british? I've studied washed-up international relationships with introductory algebra, and I know this.
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its kinda ambiguous as the '÷' isnt rly that mathematical,
everyone know brackest first so your left with 6÷2(3)
which is essentially the same as 6÷2x
now this is very ambiguous as to whether you count 2x as its own object or as 2*x
All that being said, the best approach in my mind is to consider a multiply symbol between 2 and (3)
thus giving an answer of 9
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if u read, 2x could be interpreted as its own object. if u redefine y = 2x as an object then it would read, 6÷y thus giving 1. Anyone who does maths past the age of 16 will never use the '÷' symbol and instead write using fraction to remove ambiguity
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As said before, 2x can't be interpreted "as its own object", or it can be but than both parts won't be equal, if you do y=2x=6, because 6/2*(1+2) isn't the same as 6/(2*(1+2)) therefore 6/2*(1+2) isn't equal to 6/y.
And yes nobody use that divide sign and everybody right in it fraction but it still dosn't make 1 a right answer.
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why would anyone use 3rd world math systems that dont work in real world?
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+1
at this point idk who's baiting or who's stupid
i love the confidence, what a shame
2(1+2) is not inside bracket. so it's the same as 6 ÷ 2 x (1+2).
= 6 ÷ 2 x 3
= 3 x 3
= 9
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no otherwise would be written as 6 ÷ [2(1+2)]
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of course. but its written using brackets for clarity
normally you would write above each other but these online questions are purposefuly misleading
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i am referring to the denominator as a whole not (1+2). u typed it this way urself in #109 in 2)
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But the brackets aren't for clarity, I understand what you mean (I missed something while writing #91 sorry about that) but they build the expression as it says the preference.
You don't need to clarify denominator if the expression is written right. If it was typed in double brackets, there's no need to put it in fraction at all and that's why these kind of shit expressions start debates of who's dumber.
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ok yes sorry
funny but joke doesnt rly work as add and minus, and divide multiply are on teh same level of importance and is read as left to right
This bait pops up once in a while and it's always the same explanation which is that the ÷ sign is being treated differently in different parts of the world
Some use it as a simple division sign and some use it as a division sign that also "separates" the left and right side which means that the right side is being calculated before then dividing through 6
en.wikipedia.org/wiki/Division_sign
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this
+1
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yeah, the parts that use the sign
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+1, mathematicians don't use that, you can write anything as a fraction
exactly, unless you are an idiot, baiter, or a child, you use fractions
+1
6÷2(1+2)
6÷2(3)
6÷6
1
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I always learned that you must solve multiplication first and then division o.O my head is bugging
never heard about this rule "solve from left to right"
this whole argument is irrelevant because the notation used to describe the problem is shit and could easily mean both
Obviously 9, if u say anything else you’re either stupid or american go work minimum wage and struggle your whole life
6/2x(1+2)
3x3
9
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+1
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lol trying to save yourself
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take the L brother
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sorry
this again?
I'll answer again then: both answers can be true. In some contexts and calculators/programs implicit multiplications can have a higher priority than divisions or explicit ones. In others, it has the same priority. In this case, writing a one line problem using implicit multiplication is just a bad choice of writing, made solely so it's not clear, so it really doesn't matter math wise. This is not gonna be on your tests or real life problems.
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+1
thanks, I was going to work minimum wage as #19 said
This definitely won't be anywhere in the real world, but it can be in test. This is just the kind of stuff teacher would put on a test to see if the student has been listening at all.
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Nah man... it would be just bad teaching. As I said 2 answers are possible. Literally if I put this on my calculator it outputs 1, but in windows calculator it's just 9 (actually I just checked and it automatically puts in the * for you). So what would they even teach kids by asking them that? At most they could ask something like 3-6/2*(1+2) to check if they understand the correct order so they can learn which rules calculators and programming languages follow maybe, but not a/b(c).
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It would teach to not trust the calculator. Especially if teacher knew which answer the calculators students are using would give. Teachers love that kind of stuff.
Teacher don't teach every possible way to do things in school, just the one that has accepted to be correct one in the country where they are. I personally don't remember to be thaught any other way than a/b(c) being equal to a/b*(c). Other options have always been written differently.
They taught me that the parentheses are resolved first so 1
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Flair checks out
holy shit
the how to write down math-problem again
while the math is basic the expression is written ambiguously which leaves it open to interpretation
No problem will ever be written like this in the real world. This only exists in the realm of bait tweets to get people arguing and let people like OP feel superior for reading a math problem on the internet differently than people from other countries.
that page is filled with dumb patriotic indians... legit had to mute that shit
6/2(1+2)
sub 2 = x
=6/x(1+2)
=6/(1+2)x
=6/3x
=2/x
=2/(2)
=1
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1 reply
6÷2(1+2)
= 6 over 2(1+2)
= 6 over 2(3)
= 6 over 6
= 1
this pops up each year and everytime people just argue pointlessly, can we just agree on the fact that this question is badly structured? it purposely creates doubt on the fact that multiplication and division have equal precendence and then people argue over the things they were taught in school, there is a reason why you dont use the ÷ symbol beyond elementary and middle school
post is complete bullshit, shortened version of multiplying should be used ONLY when there can't be any misunderstands
it's clearly 1 yall stupid man
this is a trick question, answer is both b and c together so 3/7
the expression is written poorly, i would ask it to be rewritten in a more clear way
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+1
I got 7
As my math number
People thought Twitter couldn't get worse and Elon Musk taught them a lesson, truly an inspiring pioneer
well well well
1 reply
Just use DONBAS the anser is 2014
i see another one of those might just blow my brains out
We wouldn't have these problems if people used fractions instead of the division sign.
Since this equation is not expressed well, both answers can be true, it just depends on how you read it. So basically it just bs tweet to bait low iq losers to fight each other.
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+1
But also it depends on where you are from.
Somewhere they use this, and somewhere they use that.
But it is not easy for everyone to just agree on one answer, when they have learned it another way.
In my school, we have learned that it's 1
1 reply
same. But it depends on where you are from.
Somewhere they use this, and somewhere they use that.
It's 1 in my school as well
The way I was taught makes this equation 1
2(3) is its own expression, similar to "2x" or (3)^2.
if it was 2*(1+2), I would say the answer is 9.
know that when it is 2(1+2) it is perfectly fine to open the brackets, making it (2+4), which would also lead to 1 in the equation 6/(2+4)
answer is 0.5
50% are s1mple fans
If you feel passionately about a particular answer to this you are a moron.
Everyone knows, for the millionth time, that this question is retarded because the order of operations is ambiguous and PEMDAS/BODMAS are literally just acronyms used to help educate 8-year-olds and are not at all fundamental axioms of mathematics.
rent due tweet
Its not math as it is incorrect.
6÷2(1+2)=?
It doesn't make sense.
6÷2(3)=? Thats not math. It is missing ÷ or * or + or -
6÷2(3)=? is equal to saying "this is math: 3(3)=?"
This is correct form depending what you want to do with 6÷2
6÷2*(1+2)=9
6÷2+(1+2)=6
6÷2-(1+2)=0
6÷2÷(1+2)=1
It depends what u want to do with "6÷2"
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6÷2(3) is exactly equivalent to 6÷2*3, the * is implicit. E.g (1+2)(1+1) = 3*2 = 6
Now since ÷ and * have the same order of precedence, in the same way, that + and - do, it is not clear in this expression which should be done first (6÷2) or (2*3) anybody that says otherwise is objectively wrong. That is why the expression 6÷2*3 is ambiguous and therefore does not have an answer.
Some calculators and programming languages get around this by adopting arbitrary conventions such as going left to right (in this case ÷ then *) or choosing one of ÷ or * to have a higher order of precedence despite them in the purely mathematical world being of the same rank.
(this entire thread can be understood with this en.wikipedia.org/wiki/Order_of_operation..)
2 replies
n1
1 if you are rightist
9 if you are leftist
make your choice
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