Subtract 42/49 from 10/12, Solve 10/12

Subtract 42/49 from 10/12

10/12 - 42/49 is -1/42.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588

Next, find the equivalent fraction of both fractional numbers with denominator 588
For the 1st fraction, since 12 × 49 = 588,
10/12 = 10 × 49/12 × 49 = 490/588
Likewise, for the 2nd fraction, since 49 × 12 = 588,
42/49 = 42 × 12/49 × 12 = 504/588
Subtract the two like fractions:
490/588 - 504/588 = 490 - 504/588 = -14/588
After reducing the fraction, the answer is -1/42

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