Subtract 90/27 from 12/63
1st number: 12/63, 2nd number: 3 9/27
12/63 - 90/27 is -22/7.
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,
12/63 = 12 × 3/63 × 3 = 36/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Subtract the two like fractions:
36/189 - 630/189 = 36 - 630/189 = -594/189 - After reducing the fraction, the answer is -22/7
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