McGraw-Hill Education GRE PREMIUM 2015 by Erfun Geula

Author:Erfun Geula
Language: eng
Format: mobi, epub
Publisher: McGraw-Hill Education
Published: 2014-04-10T05:00:00+00:00

Note that when you multiply the denominator of the fraction by a value, you must multiply the numerator of the fraction by the same value. By doing so, you are essentially multiplying the fraction by 1, which means that the value of the fraction will not change.

Comparing Fractions with Different Numerators and Denominators

Using a common denominator is also helpful when comparing fractions whose numerators and denominators differ. Look at the following Quantitative Comparison question.

SOLUTION: Express both fractions with a denominator of 72. Quantity A: . Quantity B: . Now the comparison is The fractions have the same denominator, but the numerator of the second fraction is greater. Thus Quantity B is greater.

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