Subtract 60/35 from 15/72, Solve 15/72

Subtract 60/35 from 15/72

1^st number: 15/72, 2^nd number: 1 25/35

15/72 - 60/35 is -253/168.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 35 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 35 × 72 = 2520,
60/35 = 60 × 72/35 × 72 = 4320/2520
Subtract the two like fractions:
525/2520 - 4320/2520 = 525 - 4320/2520 = -3795/2520
After reducing the fraction, the answer is -253/168

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