Subtract 45/20 from 20/24
1st number: 20/24, 2nd number: 2 5/20
20/24 - 45/20 is -17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
20/24 = 20 × 5/24 × 5 = 100/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
45/20 = 45 × 6/20 × 6 = 270/120 - Subtract the two like fractions:
100/120 - 270/120 = 100 - 270/120 = -170/120 - After reducing the fraction, the answer is -17/12
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