Subtract 42/54 from 10/28
10/28 - 42/54 is -53/126.
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,
10/28 = 10 × 27/28 × 27 = 270/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
42/54 = 42 × 14/54 × 14 = 588/756 - Subtract the two like fractions:
270/756 - 588/756 = 270 - 588/756 = -318/756 - After reducing the fraction, the answer is -53/126
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