Subtract 10/72 from 27/42, Solve 27/42

Subtract 10/72 from 27/42

27/42 - 10/72 is 127/252.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 42 × 12 = 504,
27/42 = 27 × 12/42 × 12 = 324/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
10/72 = 10 × 7/72 × 7 = 70/504
Subtract the two like fractions:
324/504 - 70/504 = 324 - 70/504 = 254/504
After reducing the fraction, the answer is 127/252

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