Subtract 21/18 from 8/63
1st number: 8/63, 2nd number: 1 3/18
8/63 - 21/18 is -131/126.
Steps for subtracting fractions
- 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,
8/63 = 8 × 2/63 × 2 = 16/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126 - Subtract the two like fractions:
16/126 - 147/126 = 16 - 147/126 = -131/126
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