Small Math Tip : GMAT Quantitative Section
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# Small Math Tip

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BSchool Forum Moderator
Joined: 01 Oct 2009
Posts: 602
GMAT 1: 530 Q47 V17
GMAT 2: 710 Q50 V36
Followers: 37

Kudos [?]: 307 [1] , given: 410

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02 May 2010, 00:03
1
KUDOS
To compare two fractions, cross-multiply. The larger product will be on the same side as the larger fraction.

Example:
Given 5/6 vs 6/7
. Cross-multiplying gives 5*7 vs. 6 *6, or 35 vs. 36. Now 36 is larger than 35, so

6/7 is larger than 5/6

Note:Ref-Math bible
Manager
Joined: 15 Apr 2010
Posts: 195
Followers: 2

Kudos [?]: 17 [0], given: 29

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03 May 2010, 11:16
thanks a lot, I had seen this somewhere.. good reminder!
Manager
Joined: 28 Apr 2010
Posts: 66
Schools: CBS
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Kudos [?]: 4 [0], given: 0

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03 May 2010, 14:32
RaviChandra wrote:
To compare two fractions, cross-multiply. The larger product will be on the same side as the larger fraction.

Example:
Given 5/6 vs 6/7
. Cross-multiplying gives 5*7 vs. 6 *6, or 35 vs. 36. Now 36 is larger than 35, so

6/7 is larger than 5/6

Note:Ref-Math bible

Awesome! Nice tip. Thank you!
Intern
Joined: 24 Feb 2010
Posts: 18
Concentration: Technology, Strategy
WE: Research (Computer Software)
Followers: 0

Kudos [?]: 2 [0], given: 15

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04 May 2010, 22:34
Re: Small Math Tip   [#permalink] 04 May 2010, 22:34
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