Subtract 81/24 from 21/2
1st number: 10 1/2, 2nd number: 3 9/24
21/2 - 81/24 is 57/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 2 × 12 = 24,
21/2 = 21 × 12/2 × 12 = 252/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
81/24 = 81 × 1/24 × 1 = 81/24 - Subtract the two like fractions:
252/24 - 81/24 = 252 - 81/24 = 171/24 - After reducing the fraction, the answer is 57/8
- In mixed form: 71/8
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