Add 28/18 and 18/4
1st number: 1 10/18, 2nd number: 4 2/4
28/18 + 18/4 is 109/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
28/18 = 28 × 2/18 × 2 = 56/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
18/4 = 18 × 9/4 × 9 = 162/36 - Add the two like fractions:
56/36 + 162/36 = 56 + 162/36 = 218/36 - 218/36 simplified gives 109/18
- So, 28/18 + 18/4 = 109/18
In mixed form: 61/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18+18/4 28/18+36/4 28/36+18/4 28/18+18/8 84/18+18/4 28/18+54/4 28/54+18/4 28/18+18/12 28/18+90/4 28/90+18/4 28/18+18/20 28/18+18/28