Subtract 7/81 from 42/14, Solve 3 0/14

Subtract 7/81 from 42/14

1^st number: 3 0/14, 2^nd number: 7/81

42/14 - 7/81 is 236/81.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134

Next, find the equivalent fraction of both fractional numbers with denominator 1134
For the 1st fraction, since 14 × 81 = 1134,
42/14 = 42 × 81/14 × 81 = 3402/1134
Likewise, for the 2nd fraction, since 81 × 14 = 1134,
7/81 = 7 × 14/81 × 14 = 98/1134
Subtract the two like fractions:
3402/1134 - 98/1134 = 3402 - 98/1134 = 3304/1134
After reducing the fraction, the answer is 236/81
In mixed form: 274/81

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