Subtract 20/15 from 18/24
1st number: 18/24, 2nd number: 1 5/15
18/24 - 20/15 is -7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
18/24 = 18 × 5/24 × 5 = 90/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
20/15 = 20 × 8/15 × 8 = 160/120 - Subtract the two like fractions:
90/120 - 160/120 = 90 - 160/120 = -70/120 - After reducing the fraction, the answer is -7/12
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