Subtract 49/81 from 27/63
27/63 - 49/81 is -100/567.
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,
27/63 = 27 × 9/63 × 9 = 243/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
49/81 = 49 × 7/81 × 7 = 343/567 - Subtract the two like fractions:
243/567 - 343/567 = 243 - 343/567 = -100/567
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