Subtract 10/75 from 5/42, Solve 5/42

Subtract 10/75 from 5/42

5/42 - 10/75 is -1/70.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 75 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 42 × 25 = 1050,
5/42 = 5 × 25/42 × 25 = 125/1050
Likewise, for the 2nd fraction, since 75 × 14 = 1050,
10/75 = 10 × 14/75 × 14 = 140/1050
Subtract the two like fractions:
125/1050 - 140/1050 = 125 - 140/1050 = -15/1050
After reducing the fraction, the answer is -1/70

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