Subtract 90/72 from 1/63
1st number: 1/63, 2nd number: 1 18/72
1/63 - 90/72 is -311/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
1/63 = 1 × 8/63 × 8 = 8/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
90/72 = 90 × 7/72 × 7 = 630/504 - Subtract the two like fractions:
8/504 - 630/504 = 8 - 630/504 = -622/504 - After reducing the fraction, the answer is -311/252
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