Add 28/12 and 28/18
1st number: 2 4/12, 2nd number: 1 10/18
28/12 + 28/18 is 35/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
28/12 = 28 × 3/12 × 3 = 84/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
28/18 = 28 × 2/18 × 2 = 56/36 - Add the two like fractions:
84/36 + 56/36 = 84 + 56/36 = 140/36 - 140/36 simplified gives 35/9
- So, 28/12 + 28/18 = 35/9
In mixed form: 38/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+28/18 28/12+56/18 28/24+28/18 28/12+28/36 84/12+28/18 28/12+84/18 28/36+28/18 28/12+28/54 28/60+28/18 28/12+28/90 28/84+28/18