Subtract 25/84 from 10/72, Solve 10/72

Subtract 25/84 from 10/72

10/72 - 25/84 is -10/63.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 84 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
10/72 = 10 × 7/72 × 7 = 70/504
Likewise, for the 2nd fraction, since 84 × 6 = 504,
25/84 = 25 × 6/84 × 6 = 150/504
Subtract the two like fractions:
70/504 - 150/504 = 70 - 150/504 = -80/504
After reducing the fraction, the answer is -10/63

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