Subtract 28/20 from 8/27, Solve 8/27

Subtract 28/20 from 8/27

1^st number: 8/27, 2^nd number: 1 8/20

8/27 - 28/20 is -149/135.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540

Next, find the equivalent fraction of both fractional numbers with denominator 540
For the 1st fraction, since 27 × 20 = 540,
8/27 = 8 × 20/27 × 20 = 160/540
Likewise, for the 2nd fraction, since 20 × 27 = 540,
28/20 = 28 × 27/20 × 27 = 756/540
Subtract the two like fractions:
160/540 - 756/540 = 160 - 756/540 = -596/540
After reducing the fraction, the answer is -149/135

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