Subtract 15/25 from 4/20
4/20 - 15/25 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
4/20 = 4 × 5/20 × 5 = 20/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
15/25 = 15 × 4/25 × 4 = 60/100 - Subtract the two like fractions:
20/100 - 60/100 = 20 - 60/100 = -40/100 - After reducing the fraction, the answer is -2/5
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