Quick Math problem

• Dec 31st 2012, 10:15 AM
Achilles
Quick Math problem
Hello, my name is Andrew, I just joined the forum and have a quick math problem.

6/2(2+1)=x

PEMDAS multiply or division whichever comes first.. Same with addition and subtraction.
the answer I'm getting is x=9
but I'm getting conflicting answers, some people are telling me x=1.
just need to confirm the answer is 9. Thanks.
• Dec 31st 2012, 10:41 AM
BobP
Re: Quick Math problem

Do you intend it to mean (6/2)*(2+1) in which case the result is 9, or, 6/{2(2+1)} in which case the result is 1.

A rule that is often adopted is 'work from left to right' in which case the result would be the first of these. However, best is to put in some extra brackets to remove the ambiguity.
• Dec 31st 2012, 12:07 PM
Wilmer
Re: Quick Math problem
6/2*(2+1) = 6/2*3 = 9
• Dec 31st 2012, 12:17 PM
ILikeSerena
Re: Quick Math problem
This is a known internet meme from 2011.
It seems to me that starting a discussion on this is a bit outdated.

Spiked math had a nice summary here:
Dear internet - Spiked Math