Subtract 20/6 from 10/63, Solve 10/63

Subtract 20/6 from 10/63

1^st number: 10/63, 2^nd number: 3 2/6

10/63 - 20/6 is -200/63.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 6 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
10/63 = 10 × 2/63 × 2 = 20/126
Likewise, for the 2nd fraction, since 6 × 21 = 126,
20/6 = 20 × 21/6 × 21 = 420/126
Subtract the two like fractions:
20/126 - 420/126 = 20 - 420/126 = -400/126
After reducing the fraction, the answer is -200/63

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