Compare 42/2 and 8/21, Which fraction is greater?

Compare 42/2 and 8/21

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

42/2 is greater than 8/21

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
42/2 = 42 × 21/2 × 21 = 882/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
8/21 = 8 × 2/21 × 2 = 16/42
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
882/42 > 16/42 or 42/2 > 8/21

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