Subtract 15/14 from 18/27
1st number: 18/27, 2nd number: 1 1/14
18/27 - 15/14 is -17/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 14 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
18/27 = 18 × 14/27 × 14 = 252/378 - Likewise, for the 2nd fraction, since 14 × 27 = 378,
15/14 = 15 × 27/14 × 27 = 405/378 - Subtract the two like fractions:
252/378 - 405/378 = 252 - 405/378 = -153/378 - After reducing the fraction, the answer is -17/42
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