Subtract 28/80 from 1/25
1/25 - 28/80 is -31/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
1/25 = 1 × 16/25 × 16 = 16/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
28/80 = 28 × 5/80 × 5 = 140/400 - Subtract the two like fractions:
16/400 - 140/400 = 16 - 140/400 = -124/400 - After reducing the fraction, the answer is -31/100
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