Subtract 8/35 from 15/72, Solve 15/72

Subtract 8/35 from 15/72

15/72 - 8/35 is -17/840.

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,
8/35 = 8 × 72/35 × 72 = 576/2520
Subtract the two like fractions:
525/2520 - 576/2520 = 525 - 576/2520 = -51/2520
After reducing the fraction, the answer is -17/840

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