Subtract 45/63 from 30/49
30/49 - 45/63 is -5/49.
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,
30/49 = 30 × 9/49 × 9 = 270/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
45/63 = 45 × 7/63 × 7 = 315/441 - Subtract the two like fractions:
270/441 - 315/441 = 270 - 315/441 = -45/441 - After reducing the fraction, the answer is -5/49
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