Subtract 48/42 from 27/70, Solve 27/70

Subtract 48/42 from 27/70

1^st number: 27/70, 2^nd number: 1 6/42

27/70 - 48/42 is -53/70.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
27/70 = 27 × 3/70 × 3 = 81/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
48/42 = 48 × 5/42 × 5 = 240/210
Subtract the two like fractions:
81/210 - 240/210 = 81 - 240/210 = -159/210
After reducing the fraction, the answer is -53/70

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