Subtract 8/5 from 18/80
1st number: 18/80, 2nd number: 1 3/5
18/80 - 8/5 is -11/8.
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,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
8/5 = 8 × 16/5 × 16 = 128/80 - Subtract the two like fractions:
18/80 - 128/80 = 18 - 128/80 = -110/80 - After reducing the fraction, the answer is -11/8
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