Subtract 48/54 from 18/28
18/28 - 48/54 is -31/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
18/28 = 18 × 27/28 × 27 = 486/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
48/54 = 48 × 14/54 × 14 = 672/756 - Subtract the two like fractions:
486/756 - 672/756 = 486 - 672/756 = -186/756 - After reducing the fraction, the answer is -31/126
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