Compare 56/42 and 21/64, Which fraction is greater?

Compare 56/42 and 21/64

1^st number: 1 14/42, 2^nd number: 21/64

56/42 is greater than 21/64

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 64 is 1344

Next, find the equivalent fraction of both fractional numbers with denominator 1344
For the 1st fraction, since 42 × 32 = 1344,
56/42 = 56 × 32/42 × 32 = 1792/1344
Likewise, for the 2nd fraction, since 64 × 21 = 1344,
21/64 = 21 × 21/64 × 21 = 441/1344
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
1792/1344 > 441/1344 or 56/42 > 21/64

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