Add 1/20 and 28/18
1st number: 1/20, 2nd number: 1 10/18
1/20 + 28/18 is 289/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
28/18 = 28 × 10/18 × 10 = 280/180 - Add the two like fractions:
9/180 + 280/180 = 9 + 280/180 = 289/180 - So, 1/20 + 28/18 = 289/180
In mixed form: 1109/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+28/18 1/20+56/18 1/40+28/18 1/20+28/36 3/20+28/18 1/20+84/18 1/60+28/18 1/20+28/54 5/20+28/18 1/20+28/90 7/20+28/18