Add 5/8 and 15/18
5/8 + 15/18 is 35/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
5/8 = 5 × 9/8 × 9 = 45/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
15/18 = 15 × 4/18 × 4 = 60/72 - Add the two like fractions:
45/72 + 60/72 = 45 + 60/72 = 105/72 - 105/72 simplified gives 35/24
- So, 5/8 + 15/18 = 35/24
In mixed form: 111/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/8+15/18 5/8+30/18 5/16+15/18 5/8+15/36 15/8+15/18 5/8+45/18 5/24+15/18 5/8+15/54 25/8+15/18 5/8+75/18 5/40+15/18 5/8+15/90 35/8+15/18 5/56+15/18