Compare 63/42 and 4/40, Which fraction is greater?

Compare 63/42 and 4/40

1^st number: 1 21/42, 2^nd number: 4/40

63/42 is greater than 4/40

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 42 × 20 = 840,
63/42 = 63 × 20/42 × 20 = 1260/840
Likewise, for the 2nd fraction, since 40 × 21 = 840,
4/40 = 4 × 21/40 × 21 = 84/840
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
1260/840 > 84/840 or 63/42 > 4/40

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