Add 15/24 and 9/20
15/24 + 9/20 is 43/40.
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,
15/24 = 15 × 5/24 × 5 = 75/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
9/20 = 9 × 6/20 × 6 = 54/120 - Add the two like fractions:
75/120 + 54/120 = 75 + 54/120 = 129/120 - 129/120 simplified gives 43/40
- So, 15/24 + 9/20 = 43/40
In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/24+9/20 15/24+18/20 15/48+9/20 15/24+9/40 45/24+9/20 15/24+27/20 15/72+9/20 15/24+9/60 75/24+9/20 15/24+45/20 15/24+63/20