Compare 8/24 and 42/21, Which fraction is greater?

Compare 8/24 and 42/21

1^st number: 8/24, 2^nd number: 2 0/21

8/24 is smaller than 42/21

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 24 × 7 = 168,
8/24 = 8 × 7/24 × 7 = 56/168
Likewise, for the 2nd fraction, since 21 × 8 = 168,
42/21 = 42 × 8/21 × 8 = 336/168
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
56/168 < 336/168 or 8/24 < 42/21

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