Subtract 21/54 from 2/18
2/18 - 21/54 is -5/18.
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,
2/18 = 2 × 3/18 × 3 = 6/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Subtract the two like fractions:
6/54 - 21/54 = 6 - 21/54 = -15/54 - After reducing the fraction, the answer is -5/18
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