Subtract 15/49 from 12/63
12/63 - 15/49 is -17/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 63 × 7 = 441,
12/63 = 12 × 7/63 × 7 = 84/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
15/49 = 15 × 9/49 × 9 = 135/441 - Subtract the two like fractions:
84/441 - 135/441 = 84 - 135/441 = -51/441 - After reducing the fraction, the answer is -17/147
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