Compare 63/3 and 81/21, Which fraction is greater?

Compare 63/3 and 81/21

1^st number: 21 0/3, 2^nd number: 3 18/21

63/3 is greater than 81/21

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21

Next, find the equivalent fraction of both fractional numbers with denominator 21
For the 1st fraction, since 3 × 7 = 21,
63/3 = 63 × 7/3 × 7 = 441/21
Likewise, for the 2nd fraction, since 21 × 1 = 21,
81/21 = 81 × 1/21 × 1 = 81/21
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
441/21 > 81/21 or 63/3 > 81/21

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