Compare 21/27 and 56/42, Which fraction is greater?

Compare 21/27 and 56/42

1^st number: 21/27, 2^nd number: 1 14/42

21/27 is smaller than 56/42

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
21/27 = 21 × 14/27 × 14 = 294/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
56/42 = 56 × 9/42 × 9 = 504/378
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
294/378 < 504/378 or 21/27 < 56/42

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