Compare 63/21 and 18/12, Which fraction is greater?

Compare 63/21 and 18/12

1^st number: 3 0/21, 2^nd number: 1 6/12

63/21 is greater than 18/12

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
63/21 = 63 × 4/21 × 4 = 252/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
18/12 = 18 × 7/12 × 7 = 126/84
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
252/84 > 126/84 or 63/21 > 18/12

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