Subtract 20/56 from 3/28
3/28 - 20/56 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
3/28 = 3 × 2/28 × 2 = 6/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
20/56 = 20 × 1/56 × 1 = 20/56 - Subtract the two like fractions:
6/56 - 20/56 = 6 - 20/56 = -14/56 - After reducing the fraction, the answer is -1/4
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