Add 15/18 and 28/36
15/18 + 28/36 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
28/36 = 28 × 1/36 × 1 = 28/36 - Add the two like fractions:
30/36 + 28/36 = 30 + 28/36 = 58/36 - 58/36 simplified gives 29/18
- So, 15/18 + 28/36 = 29/18
In mixed form: 111/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+28/36 15/18+56/36 15/36+28/36 15/18+28/72 45/18+28/36 15/18+84/36 15/54+28/36 75/18+28/36 15/90+28/36