Add 28/7 and 15/9
1st number: 4 0/7, 2nd number: 1 6/9
28/7 + 15/9 is 17/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
28/7 = 28 × 9/7 × 9 = 252/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
15/9 = 15 × 7/9 × 7 = 105/63 - Add the two like fractions:
252/63 + 105/63 = 252 + 105/63 = 357/63 - 357/63 simplified gives 17/3
- So, 28/7 + 15/9 = 17/3
In mixed form: 52/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+15/9 28/7+30/9 28/14+15/9 28/7+15/18 84/7+15/9 28/7+45/9 28/21+15/9 28/7+15/27 28/7+75/9 28/35+15/9 28/7+15/45 28/49+15/9 28/7+15/63