Subtract 24/20 from 45/9
1st number: 5 0/9, 2nd number: 1 4/20
45/9 - 24/20 is 19/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
45/9 = 45 × 20/9 × 20 = 900/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
24/20 = 24 × 9/20 × 9 = 216/180 - Subtract the two like fractions:
900/180 - 216/180 = 900 - 216/180 = 684/180 - After reducing the fraction, the answer is 19/5
- In mixed form: 34/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9-24/20 45/9-48/20 45/18-24/20 45/9-24/40 45/9-72/20 45/27-24/20 45/9-24/60 45/63-24/20