Compare 20/63 and 84/81, Which fraction is greater?

Compare 20/63 and 84/81

1^st number: 20/63, 2^nd number: 1 3/81

20/63 is smaller than 84/81

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567

Next, find the equivalent fraction of both fractional numbers with denominator 567
For the 1st fraction, since 63 × 9 = 567,
20/63 = 20 × 9/63 × 9 = 180/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
84/81 = 84 × 7/81 × 7 = 588/567
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
180/567 < 588/567 or 20/63 < 84/81

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