Subtract 12/18 from 15/27
15/27 - 12/18 is -1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
15/27 = 15 × 2/27 × 2 = 30/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
12/18 = 12 × 3/18 × 3 = 36/54 - Subtract the two like fractions:
30/54 - 36/54 = 30 - 36/54 = -6/54 - After reducing the fraction, the answer is -1/9
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