Subtract 21/6 from 24/63, Solve 24/63

Subtract 21/6 from 24/63

1^st number: 24/63, 2^nd number: 3 3/6

24/63 - 21/6 is -131/42.

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,
24/63 = 24 × 2/63 × 2 = 48/126
Likewise, for the 2nd fraction, since 6 × 21 = 126,
21/6 = 21 × 21/6 × 21 = 441/126
Subtract the two like fractions:
48/126 - 441/126 = 48 - 441/126 = -393/126
After reducing the fraction, the answer is -131/42

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