Subtract 90/25 from 10/80
1st number: 10/80, 2nd number: 3 15/25
10/80 - 90/25 is -139/40.
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,
10/80 = 10 × 5/80 × 5 = 50/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
90/25 = 90 × 16/25 × 16 = 1440/400 - Subtract the two like fractions:
50/400 - 1440/400 = 50 - 1440/400 = -1390/400 - After reducing the fraction, the answer is -139/40
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