Subtract 5/30 from 8/63, Solve 8/63

Subtract 5/30 from 8/63

8/63 - 5/30 is -5/126.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
8/63 = 8 × 10/63 × 10 = 80/630
Likewise, for the 2nd fraction, since 30 × 21 = 630,
5/30 = 5 × 21/30 × 21 = 105/630
Subtract the two like fractions:
80/630 - 105/630 = 80 - 105/630 = -25/630
After reducing the fraction, the answer is -5/126

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