Compare 21/27 and 56/63, Which fraction is greater?

Compare 21/27 and 56/63

21/27 is smaller than 56/63

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 27 × 7 = 189,
21/27 = 21 × 7/27 × 7 = 147/189
Likewise, for the 2nd fraction, since 63 × 3 = 189,
56/63 = 56 × 3/63 × 3 = 168/189
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
147/189 < 168/189 or 21/27 < 56/63

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