Compare 21/40 and 7/3, Which fraction is greater?

Compare 21/40 and 7/3

1^st number: 21/40, 2^nd number: 2 1/3

21/40 is smaller than 7/3

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 3 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120
Likewise, for the 2nd fraction, since 3 × 40 = 120,
7/3 = 7 × 40/3 × 40 = 280/120
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
63/120 < 280/120 or 21/40 < 7/3

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