Compare 56/12 and 80/15, Which fraction is greater?

Compare 56/12 and 80/15

1^st number: 4 8/12, 2^nd number: 5 5/15

56/12 is smaller than 80/15

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
56/12 = 56 × 5/12 × 5 = 280/60
Likewise, for the 2nd fraction, since 15 × 4 = 60,
80/15 = 80 × 4/15 × 4 = 320/60
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
280/60 < 320/60 or 56/12 < 80/15

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