Hi All,

This math behind this question can be dealt with in a couple of ways. Depending on how the answer choices appear, the actual amount of work involved can be quite minimal though.

We're told that the denominator of a fraction is 5 greater than the numerator and that when the numerator AND the denominator are increased by 2, the resulting fraction is equal to 7⁄12. We're asked for the value of the original fraction.

Let's work backwards from the last piece of information: increasing the numerator and denominator by 2 gives us a fraction that equals 7/12. Since that fraction MIGHT be reduced, we could end up having to 'check' several iterations (7/12, 14/24, 21/36, etc.)

If we start with 7/12 and SUBTRACT 2 from both the numerator and the denominator, we end up with (7-2)/(12-2) = 5/10 = 1/2. Since that answer appears among the 5 choices, we're done.

Final Answer:

GMAT assassins aren't born, they're made,

Rich

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# Rich Cohen

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