Subtract 20/25 from 25/40
25/40 - 20/25 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
25/40 = 25 × 5/40 × 5 = 125/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
20/25 = 20 × 8/25 × 8 = 160/200 - Subtract the two like fractions:
125/200 - 160/200 = 125 - 160/200 = -35/200 - After reducing the fraction, the answer is -7/40
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