Subtract 2/28 from 20/40
20/40 - 2/28 is 3/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 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 28 × 10 = 280,
2/28 = 2 × 10/28 × 10 = 20/280 - Subtract the two like fractions:
140/280 - 20/280 = 140 - 20/280 = 120/280 - After reducing the fraction, the answer is 3/7
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