Subtract 7/27 from 81/63
1st number: 1 18/63, 2nd number: 7/27
81/63 - 7/27 is 194/189.
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,
81/63 = 81 × 3/63 × 3 = 243/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
7/27 = 7 × 7/27 × 7 = 49/189 - Subtract the two like fractions:
243/189 - 49/189 = 243 - 49/189 = 194/189 - In mixed form: 15/189
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