Subtract 4/81 from 10/42, Solve 10/42

Subtract 4/81 from 10/42

10/42 - 4/81 is 107/567.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134

Next, find the equivalent fraction of both fractional numbers with denominator 1134
For the 1st fraction, since 42 × 27 = 1134,
10/42 = 10 × 27/42 × 27 = 270/1134
Likewise, for the 2nd fraction, since 81 × 14 = 1134,
4/81 = 4 × 14/81 × 14 = 56/1134
Subtract the two like fractions:
270/1134 - 56/1134 = 270 - 56/1134 = 214/1134
After reducing the fraction, the answer is 107/567

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