Subtract 27/84 from 15/63
15/63 - 27/84 is -1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
15/63 = 15 × 4/63 × 4 = 60/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
27/84 = 27 × 3/84 × 3 = 81/252 - Subtract the two like fractions:
60/252 - 81/252 = 60 - 81/252 = -21/252 - After reducing the fraction, the answer is -1/12
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