Compare 21/32 and 21/15, Which fraction is greater?

Compare 21/32 and 21/15

1^st number: 21/32, 2^nd number: 1 6/15

21/32 is smaller than 21/15

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 15 is 480

Next, find the equivalent fraction of both fractional numbers with denominator 480
For the 1st fraction, since 32 × 15 = 480,
21/32 = 21 × 15/32 × 15 = 315/480
Likewise, for the 2nd fraction, since 15 × 32 = 480,
21/15 = 21 × 32/15 × 32 = 672/480
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
315/480 < 672/480 or 21/32 < 21/15

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