Subtract 42/32 from 8/70, Solve 8/70

Subtract 42/32 from 8/70

1^st number: 8/70, 2^nd number: 1 10/32

8/70 - 42/32 is -671/560.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 32 is 1120

Next, find the equivalent fraction of both fractional numbers with denominator 1120
For the 1st fraction, since 70 × 16 = 1120,
8/70 = 8 × 16/70 × 16 = 128/1120
Likewise, for the 2nd fraction, since 32 × 35 = 1120,
42/32 = 42 × 35/32 × 35 = 1470/1120
Subtract the two like fractions:
128/1120 - 1470/1120 = 128 - 1470/1120 = -1342/1120
After reducing the fraction, the answer is -671/560

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