Compare 15/72 and 72/70, Which fraction is greater?

Compare 15/72 and 72/70

1^st number: 15/72, 2^nd number: 1 2/70

15/72 is smaller than 72/70

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 72 × 35 = 2520,
15/72 = 15 × 35/72 × 35 = 525/2520
Likewise, for the 2nd fraction, since 70 × 36 = 2520,
72/70 = 72 × 36/70 × 36 = 2592/2520
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
525/2520 < 2592/2520 or 15/72 < 72/70

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