Subtract 15/18 from 7/54
7/54 - 15/18 is -19/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
7/54 = 7 × 1/54 × 1 = 7/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
15/18 = 15 × 3/18 × 3 = 45/54 - Subtract the two like fractions:
7/54 - 45/54 = 7 - 45/54 = -38/54 - After reducing the fraction, the answer is -19/27
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