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113 DS Quantitative review

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by El Cucu » Fri Feb 20, 2009 1:05 pm
Hi guys, only one doubt: Least common denominator have the same function in the exercise as Least common multiple?

In the fraction x/y, where x and y are positive integers, what is the value of y?
1) The least common denominator of x/y and 1/3 is 6.
2) x=1
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Source: — Data Sufficiency |

Re: 113 DS Quantitative review

by mygmat.2009 » Fri Feb 20, 2009 3:41 pm
El Cucu wrote:Hi guys, only one doubt: Least common denominator have the same function in the exercise as Least common multiple?

In the fraction x/y, where x and y are positive integers, what is the value of y?
1) The least common denominator of x/y and 1/3 is 6.
2) x=1


LCD = LCM of denominators
In this case LCD of x/y and 1/3 is 6 can be rephrased to:
LCM of y and 3 is 6.
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