Subtract 27/14 from 20/15, Solve 1 5/15

Subtract 27/14 from 20/15

1^st number: 1 5/15, 2^nd number: 1 13/14

20/15 - 27/14 is -25/42.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 15 × 14 = 210,
20/15 = 20 × 14/15 × 14 = 280/210
Likewise, for the 2nd fraction, since 14 × 15 = 210,
27/14 = 27 × 15/14 × 15 = 405/210
Subtract the two like fractions:
280/210 - 405/210 = 280 - 405/210 = -125/210
After reducing the fraction, the answer is -25/42

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