Compare 9/15 and 27/20, Which fraction is greater?

Compare 9/15 and 27/20

1^st number: 9/15, 2^nd number: 1 7/20

9/15 is smaller than 27/20

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60
Likewise, for the 2nd fraction, since 20 × 3 = 60,
27/20 = 27 × 3/20 × 3 = 81/60
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
36/60 < 81/60 or 9/15 < 27/20

MathStep (Works offline)

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