Subtract 90/5 from 90/80
1st number: 1 10/80, 2nd number: 18 0/5
90/80 - 90/5 is -135/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
90/80 = 90 × 1/80 × 1 = 90/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
90/5 = 90 × 16/5 × 16 = 1440/80 - Subtract the two like fractions:
90/80 - 1440/80 = 90 - 1440/80 = -1350/80 - After reducing the fraction, the answer is -135/8
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