Subtract 90/40 from 8/5
1st number: 1 3/5, 2nd number: 2 10/40
8/5 - 90/40 is -13/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
8/5 = 8 × 8/5 × 8 = 64/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
90/40 = 90 × 1/40 × 1 = 90/40 - Subtract the two like fractions:
64/40 - 90/40 = 64 - 90/40 = -26/40 - After reducing the fraction, the answer is -13/20
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