Compare 20/63 and 84/18, Which fraction is greater?

Compare 20/63 and 84/18

1^st number: 20/63, 2^nd number: 4 12/18

20/63 is smaller than 84/18

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
20/63 = 20 × 2/63 × 2 = 40/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
84/18 = 84 × 7/18 × 7 = 588/126
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
40/126 < 588/126 or 20/63 < 84/18

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