Subtract 80/28 from 10/27, Solve 10/27

Subtract 80/28 from 10/27

1^st number: 10/27, 2^nd number: 2 24/28

10/27 - 80/28 is -470/189.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 27 × 28 = 756,
10/27 = 10 × 28/27 × 28 = 280/756
Likewise, for the 2nd fraction, since 28 × 27 = 756,
80/28 = 80 × 27/28 × 27 = 2160/756
Subtract the two like fractions:
280/756 - 2160/756 = 280 - 2160/756 = -1880/756
After reducing the fraction, the answer is -470/189

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