Compare 9/12 and 81/30, Which fraction is greater?

Compare 9/12 and 81/30

1^st number: 9/12, 2^nd number: 2 21/30

9/12 is smaller than 81/30

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60
Likewise, for the 2nd fraction, since 30 × 2 = 60,
81/30 = 81 × 2/30 × 2 = 162/60
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
45/60 < 162/60 or 9/12 < 81/30

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