Add 28/42 and 5/9
28/42 + 5/9 is 11/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
28/42 = 28 × 3/42 × 3 = 84/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
5/9 = 5 × 14/9 × 14 = 70/126 - Add the two like fractions:
84/126 + 70/126 = 84 + 70/126 = 154/126 - 154/126 simplified gives 11/9
- So, 28/42 + 5/9 = 11/9
In mixed form: 12/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+5/9 28/42+10/9 28/84+5/9 28/42+5/18 84/42+5/9 28/42+15/9 28/42+5/27 28/42+25/9 28/42+5/45 28/42+35/9 28/42+5/63