Subtract 40/50 from 15/25
15/25 - 40/50 is -1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 25 × 2 = 50,
15/25 = 15 × 2/25 × 2 = 30/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
40/50 = 40 × 1/50 × 1 = 40/50 - Subtract the two like fractions:
30/50 - 40/50 = 30 - 40/50 = -10/50 - After reducing the fraction, the answer is -1/5
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