Subtract 90/5 from 81/24
1st number: 3 9/24, 2nd number: 18 0/5
81/24 - 90/5 is -117/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 5 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
81/24 = 81 × 5/24 × 5 = 405/120 - Likewise, for the 2nd fraction, since 5 × 24 = 120,
90/5 = 90 × 24/5 × 24 = 2160/120 - Subtract the two like fractions:
405/120 - 2160/120 = 405 - 2160/120 = -1755/120 - After reducing the fraction, the answer is -117/8
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