Subtract 7/15 from 12/63
12/63 - 7/15 is -29/105.
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,
12/63 = 12 × 5/63 × 5 = 60/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
7/15 = 7 × 21/15 × 21 = 147/315 - Subtract the two like fractions:
60/315 - 147/315 = 60 - 147/315 = -87/315 - After reducing the fraction, the answer is -29/105
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