Add 7/28 and 15/9
1st number: 7/28, 2nd number: 1 6/9
7/28 + 15/9 is 23/12.
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,
7/28 = 7 × 9/28 × 9 = 63/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
15/9 = 15 × 28/9 × 28 = 420/252 - Add the two like fractions:
63/252 + 420/252 = 63 + 420/252 = 483/252 - 483/252 simplified gives 23/12
- So, 7/28 + 15/9 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+15/9 7/28+30/9 7/56+15/9 7/28+15/18 21/28+15/9 7/28+45/9 7/84+15/9 7/28+15/27 35/28+15/9 7/28+75/9 7/28+15/45 49/28+15/9 7/28+15/63