Subtract 42/63 from 90/49
1st number: 1 41/49, 2nd number: 42/63
90/49 - 42/63 is 172/147.
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,
90/49 = 90 × 9/49 × 9 = 810/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
42/63 = 42 × 7/63 × 7 = 294/441 - Subtract the two like fractions:
810/441 - 294/441 = 810 - 294/441 = 516/441 - After reducing the fraction, the answer is 172/147
- In mixed form: 125/147
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