Subtract 56/81 from 18/63
18/63 - 56/81 is -230/567.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 63 × 9 = 567,
18/63 = 18 × 9/63 × 9 = 162/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
56/81 = 56 × 7/81 × 7 = 392/567 - Subtract the two like fractions:
162/567 - 392/567 = 162 - 392/567 = -230/567
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