Add 15/24 and 9/40
15/24 + 9/40 is 17/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 40 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 40 × 3 = 120,
9/40 = 9 × 3/40 × 3 = 27/120 - Add the two like fractions:
75/120 + 27/120 = 75 + 27/120 = 102/120 - 102/120 simplified gives 17/20
- So, 15/24 + 9/40 = 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/24+9/40 15/24+18/40 15/48+9/40 15/24+9/80 45/24+9/40 15/24+27/40 15/72+9/40 75/24+9/40 15/24+45/40 15/24+63/40