Subtract 21/6 from 40/63
1st number: 40/63, 2nd number: 3 3/6
40/63 - 21/6 is -361/126.
Steps for subtracting fractions
- 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,
40/63 = 40 × 2/63 × 2 = 80/126 - Likewise, for the 2nd fraction, since 6 × 21 = 126,
21/6 = 21 × 21/6 × 21 = 441/126 - Subtract the two like fractions:
80/126 - 441/126 = 80 - 441/126 = -361/126
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