Add 9/24 and 45/20
1st number: 9/24, 2nd number: 2 5/20
9/24 + 45/20 is 21/8.
Steps for adding 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,
9/24 = 9 × 5/24 × 5 = 45/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
45/20 = 45 × 6/20 × 6 = 270/120 - Add the two like fractions:
45/120 + 270/120 = 45 + 270/120 = 315/120 - 315/120 simplified gives 21/8
- So, 9/24 + 45/20 = 21/8
In mixed form: 25/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/24+45/20 9/24+90/20 9/48+45/20 9/24+45/40 27/24+45/20 9/72+45/20 9/24+45/60 45/24+45/20 63/24+45/20