Compare 12/20 and 30/15, Which fraction is greater?

Compare 12/20 and 30/15

1^st number: 12/20, 2^nd number: 2 0/15

12/20 is smaller than 30/15

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

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 20 × 3 = 60,
12/20 = 12 × 3/20 × 3 = 36/60
Likewise, for the 2nd fraction, since 15 × 4 = 60,
30/15 = 30 × 4/15 × 4 = 120/60
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
36/60 < 120/60 or 12/20 < 30/15

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