Subtract 12/70 from 42/25, Solve 1 17/25

Subtract 12/70 from 42/25

1^st number: 1 17/25, 2^nd number: 12/70

42/25 - 12/70 is 264/175.

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

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 25 × 14 = 350,
42/25 = 42 × 14/25 × 14 = 588/350
Likewise, for the 2nd fraction, since 70 × 5 = 350,
12/70 = 12 × 5/70 × 5 = 60/350
Subtract the two like fractions:
588/350 - 60/350 = 588 - 60/350 = 528/350
After reducing the fraction, the answer is 264/175
In mixed form: 189/175

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