Subtract 18/56 from 20/28
20/28 - 18/56 is 11/28.
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,
20/28 = 20 × 2/28 × 2 = 40/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
18/56 = 18 × 1/56 × 1 = 18/56 - Subtract the two like fractions:
40/56 - 18/56 = 40 - 18/56 = 22/56 - After reducing the fraction, the answer is 11/28
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