Add 15/28 and 28/9
1st number: 15/28, 2nd number: 3 1/9
15/28 + 28/9 is 919/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
15/28 = 15 × 9/28 × 9 = 135/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
28/9 = 28 × 28/9 × 28 = 784/252 - Add the two like fractions:
135/252 + 784/252 = 135 + 784/252 = 919/252 - So, 15/28 + 28/9 = 919/252
In mixed form: 3163/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+28/9 15/28+56/9 15/56+28/9 15/28+28/18 45/28+28/9 15/28+84/9 15/84+28/9 15/28+28/27 75/28+28/9 15/28+28/45 15/28+28/63