Subtract 15/30 from 45/24
1st number: 1 21/24, 2nd number: 15/30
45/24 - 15/30 is 11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
45/24 = 45 × 5/24 × 5 = 225/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
15/30 = 15 × 4/30 × 4 = 60/120 - Subtract the two like fractions:
225/120 - 60/120 = 225 - 60/120 = 165/120 - After reducing the fraction, the answer is 11/8
- In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24-15/30 45/48-15/30 45/24-15/60 45/24-45/30 45/72-15/30 45/24-15/90 45/24-75/30