Subtract 5/7 from 3/27
3/27 - 5/7 is -38/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
3/27 = 3 × 7/27 × 7 = 21/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
5/7 = 5 × 27/7 × 27 = 135/189 - Subtract the two like fractions:
21/189 - 135/189 = 21 - 135/189 = -114/189 - After reducing the fraction, the answer is -38/63
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