Subtract 18/24 from 20/5
1st number: 4 0/5, 2nd number: 18/24
20/5 - 18/24 is 13/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 5 × 24 = 120,
20/5 = 20 × 24/5 × 24 = 480/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
18/24 = 18 × 5/24 × 5 = 90/120 - Subtract the two like fractions:
480/120 - 90/120 = 480 - 90/120 = 390/120 - After reducing the fraction, the answer is 13/4
- In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-18/24 20/5-36/24 20/10-18/24 20/5-18/48 60/5-18/24 20/5-54/24 20/15-18/24 20/5-18/72 20/5-90/24 20/25-18/24 20/35-18/24