Subtract 70/20 from 4/27, Solve 4/27

Subtract 70/20 from 4/27

1^st number: 4/27, 2^nd number: 3 10/20

4/27 - 70/20 is -181/54.

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,
4/27 = 4 × 20/27 × 20 = 80/540
Likewise, for the 2nd fraction, since 20 × 27 = 540,
70/20 = 70 × 27/20 × 27 = 1890/540
Subtract the two like fractions:
80/540 - 1890/540 = 80 - 1890/540 = -1810/540
After reducing the fraction, the answer is -181/54

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