Compare 56/45 and 21/42, Which fraction is greater?

Compare 56/45 and 21/42

1^st number: 1 11/45, 2^nd number: 21/42

56/45 is greater than 21/42

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
56/45 = 56 × 14/45 × 14 = 784/630
Likewise, for the 2nd fraction, since 42 × 15 = 630,
21/42 = 21 × 15/42 × 15 = 315/630
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
784/630 > 315/630 or 56/45 > 21/42

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