Subtract 81/7 from 4/27
1st number: 4/27, 2nd number: 11 4/7
4/27 - 81/7 is -2159/189.
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,
4/27 = 4 × 7/27 × 7 = 28/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
81/7 = 81 × 27/7 × 27 = 2187/189 - Subtract the two like fractions:
28/189 - 2187/189 = 28 - 2187/189 = -2159/189
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