Subtract 42/25 from 4/70, Solve 4/70

Subtract 42/25 from 4/70

1^st number: 4/70, 2^nd number: 1 17/25

4/70 - 42/25 is -284/175.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 70 × 5 = 350,
4/70 = 4 × 5/70 × 5 = 20/350
Likewise, for the 2nd fraction, since 25 × 14 = 350,
42/25 = 42 × 14/25 × 14 = 588/350
Subtract the two like fractions:
20/350 - 588/350 = 20 - 588/350 = -568/350
After reducing the fraction, the answer is -284/175

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