Subtract 7/27 from 15/63
15/63 - 7/27 is -4/189.
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,
15/63 = 15 × 3/63 × 3 = 45/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
7/27 = 7 × 7/27 × 7 = 49/189 - Subtract the two like fractions:
45/189 - 49/189 = 45 - 49/189 = -4/189
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