Subtract 20/54 from 6/18
6/18 - 20/54 is -1/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
6/18 = 6 × 3/18 × 3 = 18/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
20/54 = 20 × 1/54 × 1 = 20/54 - Subtract the two like fractions:
18/54 - 20/54 = 18 - 20/54 = -2/54 - After reducing the fraction, the answer is -1/27
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