Subtract 7/20 from 8/25
8/25 - 7/20 is -3/100.
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,
8/25 = 8 × 4/25 × 4 = 32/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
7/20 = 7 × 5/20 × 5 = 35/100 - Subtract the two like fractions:
32/100 - 35/100 = 32 - 35/100 = -3/100
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