Subtract 20/49 from 15/12, Solve 1 3/12

Subtract 20/49 from 15/12

1^st number: 1 3/12, 2^nd number: 20/49

15/12 - 20/49 is 165/196.

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,
15/12 = 15 × 49/12 × 49 = 735/588
Likewise, for the 2nd fraction, since 49 × 12 = 588,
20/49 = 20 × 12/49 × 12 = 240/588
Subtract the two like fractions:
735/588 - 240/588 = 735 - 240/588 = 495/588
After reducing the fraction, the answer is 165/196

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