Subtract 20/25 from 12/80
12/80 - 20/25 is -13/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
12/80 = 12 × 5/80 × 5 = 60/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
20/25 = 20 × 16/25 × 16 = 320/400 - Subtract the two like fractions:
60/400 - 320/400 = 60 - 320/400 = -260/400 - After reducing the fraction, the answer is -13/20
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