Subtract 18/56 from 20/40
20/40 - 18/56 is 5/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
20/40 = 20 × 7/40 × 7 = 140/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
18/56 = 18 × 5/56 × 5 = 90/280 - Subtract the two like fractions:
140/280 - 90/280 = 140 - 90/280 = 50/280 - After reducing the fraction, the answer is 5/28
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