Subtract 18/27 from 8/63
8/63 - 18/27 is -34/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 63 × 3 = 189,
8/63 = 8 × 3/63 × 3 = 24/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
18/27 = 18 × 7/27 × 7 = 126/189 - Subtract the two like fractions:
24/189 - 126/189 = 24 - 126/189 = -102/189 - After reducing the fraction, the answer is -34/63
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