Subtract 8/12 from 5/70, Solve 5/70

Subtract 8/12 from 5/70

5/70 - 8/12 is -25/42.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 70 × 6 = 420,
5/70 = 5 × 6/70 × 6 = 30/420
Likewise, for the 2nd fraction, since 12 × 35 = 420,
8/12 = 8 × 35/12 × 35 = 280/420
Subtract the two like fractions:
30/420 - 280/420 = 30 - 280/420 = -250/420
After reducing the fraction, the answer is -25/42

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