Subtract 40/15 from 7/63
1st number: 7/63, 2nd number: 2 10/15
7/63 - 40/15 is -23/9.
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,
7/63 = 7 × 5/63 × 5 = 35/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
40/15 = 40 × 21/15 × 21 = 840/315 - Subtract the two like fractions:
35/315 - 840/315 = 35 - 840/315 = -805/315 - After reducing the fraction, the answer is -23/9
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