Subtract 81/80 from 5/18
1st number: 5/18, 2nd number: 1 1/80
5/18 - 81/80 is -529/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
5/18 = 5 × 40/18 × 40 = 200/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
81/80 = 81 × 9/80 × 9 = 729/720 - Subtract the two like fractions:
200/720 - 729/720 = 200 - 729/720 = -529/720
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