Subtract 18/20 from 9/25
9/25 - 18/20 is -27/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
9/25 = 9 × 4/25 × 4 = 36/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
18/20 = 18 × 5/20 × 5 = 90/100 - Subtract the two like fractions:
36/100 - 90/100 = 36 - 90/100 = -54/100 - After reducing the fraction, the answer is -27/50
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