Subtract 70/42 from 14/27, Solve 14/27

Subtract 70/42 from 14/27

1^st number: 14/27, 2^nd number: 1 28/42

14/27 - 70/42 is -31/27.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
14/27 = 14 × 14/27 × 14 = 196/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
70/42 = 70 × 9/42 × 9 = 630/378
Subtract the two like fractions:
196/378 - 630/378 = 196 - 630/378 = -434/378
After reducing the fraction, the answer is -31/27

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