Subtract 42/9 from 12/27
1st number: 12/27, 2nd number: 4 6/9
12/27 - 42/9 is -38/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 27 × 1 = 27,
12/27 = 12 × 1/27 × 1 = 12/27 - Likewise, for the 2nd fraction, since 9 × 3 = 27,
42/9 = 42 × 3/9 × 3 = 126/27 - Subtract the two like fractions:
12/27 - 126/27 = 12 - 126/27 = -114/27 - After reducing the fraction, the answer is -38/9
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