Subtract 81/21 from 60/27
1st number: 2 6/27, 2nd number: 3 18/21
60/27 - 81/21 is -103/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
60/27 = 60 × 7/27 × 7 = 420/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
81/21 = 81 × 9/21 × 9 = 729/189 - Subtract the two like fractions:
420/189 - 729/189 = 420 - 729/189 = -309/189 - After reducing the fraction, the answer is -103/63
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