Compare 21/81 and 56/14, Which fraction is greater?

Compare 21/81 and 56/14

1^st number: 21/81, 2^nd number: 4 0/14

21/81 is smaller than 56/14

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 14 is 1134

Next, find the equivalent fraction of both fractional numbers with denominator 1134
For the 1st fraction, since 81 × 14 = 1134,
21/81 = 21 × 14/81 × 14 = 294/1134
Likewise, for the 2nd fraction, since 14 × 81 = 1134,
56/14 = 56 × 81/14 × 81 = 4536/1134
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
294/1134 < 4536/1134 or 21/81 < 56/14

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