Subtract 20/25 from 3/4
3/4 - 20/25 is -1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
3/4 = 3 × 25/4 × 25 = 75/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
20/25 = 20 × 4/25 × 4 = 80/100 - Subtract the two like fractions:
75/100 - 80/100 = 75 - 80/100 = -5/100 - After reducing the fraction, the answer is -1/20
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