Subtract 70/36 from 27/70, Solve 27/70

Subtract 70/36 from 27/70

1^st number: 27/70, 2^nd number: 1 34/36

27/70 - 70/36 is -491/315.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 70 × 18 = 1260,
27/70 = 27 × 18/70 × 18 = 486/1260
Likewise, for the 2nd fraction, since 36 × 35 = 1260,
70/36 = 70 × 35/36 × 35 = 2450/1260
Subtract the two like fractions:
486/1260 - 2450/1260 = 486 - 2450/1260 = -1964/1260
After reducing the fraction, the answer is -491/315

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