Subtract 49/27 from 21/63
1st number: 21/63, 2nd number: 1 22/27
21/63 - 49/27 is -40/27.
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,
21/63 = 21 × 3/63 × 3 = 63/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
49/27 = 49 × 7/27 × 7 = 343/189 - Subtract the two like fractions:
63/189 - 343/189 = 63 - 343/189 = -280/189 - After reducing the fraction, the answer is -40/27
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