Subtract 28/18 from 5/63, Solve 5/63

Subtract 28/18 from 5/63

1^st number: 5/63, 2^nd number: 1 10/18

5/63 - 28/18 is -31/21.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
5/63 = 5 × 2/63 × 2 = 10/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
28/18 = 28 × 7/18 × 7 = 196/126
Subtract the two like fractions:
10/126 - 196/126 = 10 - 196/126 = -186/126
After reducing the fraction, the answer is -31/21

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