Subtract 80/14 from 20/27, Solve 20/27

Subtract 80/14 from 20/27

1^st number: 20/27, 2^nd number: 5 10/14

20/27 - 80/14 is -940/189.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 14 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
20/27 = 20 × 14/27 × 14 = 280/378
Likewise, for the 2nd fraction, since 14 × 27 = 378,
80/14 = 80 × 27/14 × 27 = 2160/378
Subtract the two like fractions:
280/378 - 2160/378 = 280 - 2160/378 = -1880/378
After reducing the fraction, the answer is -940/189

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