Subtract 9/7 from 4/54, Solve 4/54

Subtract 9/7 from 4/54

1^st number: 4/54, 2^nd number: 1 2/7

4/54 - 9/7 is -229/189.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
4/54 = 4 × 7/54 × 7 = 28/378
Likewise, for the 2nd fraction, since 7 × 54 = 378,
9/7 = 9 × 54/7 × 54 = 486/378
Subtract the two like fractions:
28/378 - 486/378 = 28 - 486/378 = -458/378
After reducing the fraction, the answer is -229/189

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