Subtract 81/8 from 20/24
1st number: 20/24, 2nd number: 10 1/8
20/24 - 81/8 is -223/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 24 × 1 = 24,
20/24 = 20 × 1/24 × 1 = 20/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
81/8 = 81 × 3/8 × 3 = 243/24 - Subtract the two like fractions:
20/24 - 243/24 = 20 - 243/24 = -223/24
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