Subtract 50/63 from 10/54, Solve 10/54

Subtract 50/63 from 10/54

10/54 - 50/63 is -115/189.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
10/54 = 10 × 7/54 × 7 = 70/378
Likewise, for the 2nd fraction, since 63 × 6 = 378,
50/63 = 50 × 6/63 × 6 = 300/378
Subtract the two like fractions:
70/378 - 300/378 = 70 - 300/378 = -230/378
After reducing the fraction, the answer is -115/189

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