Subtract 18/49 from 9/63
9/63 - 18/49 is -11/49.
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,
9/63 = 9 × 7/63 × 7 = 63/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
18/49 = 18 × 9/49 × 9 = 162/441 - Subtract the two like fractions:
63/441 - 162/441 = 63 - 162/441 = -99/441 - After reducing the fraction, the answer is -11/49
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