Subtract 20/63 from 9/49
9/49 - 20/63 is -59/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
9/49 = 9 × 9/49 × 9 = 81/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
20/63 = 20 × 7/63 × 7 = 140/441 - Subtract the two like fractions:
81/441 - 140/441 = 81 - 140/441 = -59/441
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