Subtract 28/20 from 20/54
1st number: 20/54, 2nd number: 1 8/20
20/54 - 28/20 is -139/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
20/54 = 20 × 10/54 × 10 = 200/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
28/20 = 28 × 27/20 × 27 = 756/540 - Subtract the two like fractions:
200/540 - 756/540 = 200 - 756/540 = -556/540 - After reducing the fraction, the answer is -139/135
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