Subtract 81/56 from 40/63
1st number: 40/63, 2nd number: 1 25/56
40/63 - 81/56 is -409/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
40/63 = 40 × 8/63 × 8 = 320/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
81/56 = 81 × 9/56 × 9 = 729/504 - Subtract the two like fractions:
320/504 - 729/504 = 320 - 729/504 = -409/504
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Related: 80/63-81/56