My Math Forum Confusing PEMDAS problem. Help for clarification

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 April 29th, 2011, 06:27 PM #1 Member   Joined: Nov 2010 Posts: 39 Thanks: 0 Confusing PEMDAS problem. Help for clarification Hi, I found this problem in my university page in facebook. The problem is this 6/2(1+2)=? Using the PEMDAS method, I came to the answer that it is 1.. But there's a professional from the page saying that the right answer is 9. She says that division comes first before multiplication. Help! I need to clarify what the true answer is before my head bursts out of confusion. Thank you very much.
 April 29th, 2011, 06:41 PM #2 Senior Member   Joined: Apr 2007 Posts: 2,140 Thanks: 0 6 ÷ 2(1 + 2) = 6 ÷ 2(3) = 3(3) = 9
 April 29th, 2011, 06:48 PM #3 Member   Joined: Nov 2010 Posts: 39 Thanks: 0 Re: Confusing PEMDAS problem. Help for clarification Why is it you need to divide first the number 6 to 2? Am I right when I say that we can express the problem in a rational form the numerator is 6 and denominator is 2(1+2) simplifying getting an answer of 1?
 April 29th, 2011, 06:50 PM #4 Senior Member   Joined: Apr 2007 Posts: 2,140 Thanks: 0 PEMDAS, PEDMAS, PEMDSA or PEDMSA works, i.e. from left to right.
 April 29th, 2011, 09:07 PM #5 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,209 Thanks: 517 Math Focus: Calculus/ODEs Re: Confusing PEMDAS problem. Help for clarification See this topic.

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