Subtract 81/80 from 20/24
1st number: 20/24, 2nd number: 1 1/80
20/24 - 81/80 is -43/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 24 × 10 = 240,
20/24 = 20 × 10/24 × 10 = 200/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
81/80 = 81 × 3/80 × 3 = 243/240 - Subtract the two like fractions:
200/240 - 243/240 = 200 - 243/240 = -43/240
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