Subtract 18/9 from 81/24
1st number: 3 9/24, 2nd number: 2 0/9
81/24 - 18/9 is 11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
81/24 = 81 × 3/24 × 3 = 243/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
18/9 = 18 × 8/9 × 8 = 144/72 - Subtract the two like fractions:
243/72 - 144/72 = 243 - 144/72 = 99/72 - After reducing the fraction, the answer is 11/8
- In mixed form: 13/8
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