Poll: 6÷2(1+2)

6/2(1+2) = ?

  • 9

    Votes: 516 68.9%
  • 1

    Votes: 233 31.1%

  • Total voters
    749
calcd.png


lol :D

I'm not saying it's wrong or right, but I would like an explanation as to why my calculator is showing this, thanks :)
 
It appears that this problem has been discussed to death on many, many other forums as the answer to: 48÷2(9+3). If the other threads are anything to go by, the future of this thread does not look good :p

In fairness I can see the argument from both sides. It all depends whether you see an extra pair of brackets as being implied by the lack of multiplication symbol, i.e. 2(1+2) is either 2*(1+2) or (2*(1+2)).


I think it boils down even simpler. It's whether you natually do multiplication first or division as neither is more important and, as a result, are equal.

Question is not defined correctly.
 
[...]
But then Zefan mentioned BODMAS, which means i'm wrong, it's actually:

6/2(1+2)

Brackets: 6/2(3)

There are no operands.

Division next: 3(3)

Then Multiplication, gives an answer of 9.

What you've done there is Addition, not Bracket resolution.
 
I'm not saying it's wrong or right, but I would like an explanation as to why my calculator is showing this, thanks :)

I've got the Casio power graphic fx-9750g and it says one too. It's just ours are doing the multiplication first before the division. That is all.

The two different ways are:

division first

6 / 2(1+2) = x
6 / 2(3) = x
3(3) = x
9 = x

multiplication first

6 / 2(1+2) = x
6 / 2(3) = x
6 / 6 = x
1 = x

So there we go, that's the real answer until we get more parentheses clearly defining the problem. The reason either answer is valid is because in BODMAS or BOMDAS multiplication and division are of equal precedence so neither has precedence over the other. BODMAS is Brackets, Orders, Division or Multiplication, Addition, Subtraction
 
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I'm not saying it's wrong or right, but I would like an explanation as to why my calculator is showing this, thanks :)

lol after much messing with mine i honestly cant tell you , i do get 9 though , have also had a fair few ciders.



that art of trolling thing is explaining it how i was trying to explain it
 
There is no right answer.

If I said to you lot:

A = 6
B = 2(1+2)

What is A ÷ B?

... It is unambiguously equal to 1 as we treat A and B as separate terms.

The argument I failed to comprehend before this thread is that the expression can actually be interpreted in two ways:

(6÷2) * (1+2) which gives an answer of 9 - The same you would get using BODMAS.

(OR)

6÷(2(1+2)) which gives 1 - and IMO makes more sense given practical mathematical application.
 
I've got the Casio power graphic fx-9750g and it says one too. It's just ours are doing the multiplication first before the division. That is all.

The two different ways are:

division first

6 / 2(1+2) = x
6 / 2(3) = x
3(3) = x
9 = x

multiplication first

6 / 2(1+2) = x
6 / 2(3) = x
6 / 6 = x
1 = x

So there we go, that's the real answer until we get more parentheses clearly defining the problem.


lol I was so sure it was 9 but this has thrown me :p
 
Imagine it like this, it's (6/2)(3).

2(2+1) is not a single term hence the division takes place first due to bodmas.
 
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