Compare 63/72 and 81/14, Which fraction is greater?

Compare 63/72 and 81/14

1^st number: 63/72, 2^nd number: 5 11/14

63/72 is smaller than 81/14

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504
Likewise, for the 2nd fraction, since 14 × 36 = 504,
81/14 = 81 × 36/14 × 36 = 2916/504
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
441/504 < 2916/504 or 63/72 < 81/14

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad