Subtract 20/15 from 8/63
1st number: 8/63, 2nd number: 1 5/15
8/63 - 20/15 is -76/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
8/63 = 8 × 5/63 × 5 = 40/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
20/15 = 20 × 21/15 × 21 = 420/315 - Subtract the two like fractions:
40/315 - 420/315 = 40 - 420/315 = -380/315 - After reducing the fraction, the answer is -76/63
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