Subtract 42/27 from 7/18
1st number: 7/18, 2nd number: 1 15/27
7/18 - 42/27 is -7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
7/18 = 7 × 3/18 × 3 = 21/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
42/27 = 42 × 2/27 × 2 = 84/54 - Subtract the two like fractions:
21/54 - 84/54 = 21 - 84/54 = -63/54 - After reducing the fraction, the answer is -7/6
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