Subtract 80/20 from 10/27, Solve 10/27

Subtract 80/20 from 10/27

1^st number: 10/27, 2^nd number: 4 0/20

10/27 - 80/20 is -98/27.

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,
10/27 = 10 × 20/27 × 20 = 200/540
Likewise, for the 2nd fraction, since 20 × 27 = 540,
80/20 = 80 × 27/20 × 27 = 2160/540
Subtract the two like fractions:
200/540 - 2160/540 = 200 - 2160/540 = -1960/540
After reducing the fraction, the answer is -98/27

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