Subtract 10/25 from 28/80
28/80 - 10/25 is -1/20.
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,
28/80 = 28 × 5/80 × 5 = 140/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
10/25 = 10 × 16/25 × 16 = 160/400 - Subtract the two like fractions:
140/400 - 160/400 = 140 - 160/400 = -20/400 - After reducing the fraction, the answer is -1/20
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