Compare 15/80 and 8/7, Which fraction is greater?

Compare 15/80 and 8/7

1^st number: 15/80, 2^nd number: 1 1/7

15/80 is smaller than 8/7

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560
Likewise, for the 2nd fraction, since 7 × 80 = 560,
8/7 = 8 × 80/7 × 80 = 640/560
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
105/560 < 640/560 or 15/80 < 8/7

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