Compare 45/63 and 45/42, Which fraction is greater?

Compare 45/63 and 45/42

1^st number: 45/63, 2^nd number: 1 3/42

45/63 is smaller than 45/42

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 42 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
45/63 = 45 × 2/63 × 2 = 90/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
45/42 = 45 × 3/42 × 3 = 135/126
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
90/126 < 135/126 or 45/63 < 45/42

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