Compare 84/24 and 20/81, Which fraction is greater?

Compare 84/24 and 20/81

1^st number: 3 12/24, 2^nd number: 20/81

84/24 is greater than 20/81

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 81 is 648

Next, find the equivalent fraction of both fractional numbers with denominator 648
For the 1st fraction, since 24 × 27 = 648,
84/24 = 84 × 27/24 × 27 = 2268/648
Likewise, for the 2nd fraction, since 81 × 8 = 648,
20/81 = 20 × 8/81 × 8 = 160/648
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
2268/648 > 160/648 or 84/24 > 20/81

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