Add 9/18 and 18/28
9/18 + 18/28 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
9/18 = 9 × 14/18 × 14 = 126/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
18/28 = 18 × 9/28 × 9 = 162/252 - Add the two like fractions:
126/252 + 162/252 = 126 + 162/252 = 288/252 - 288/252 simplified gives 8/7
- So, 9/18 + 18/28 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+36/28 9/36+18/28 9/18+18/56 27/18+18/28 9/18+54/28 9/54+18/28 9/18+18/84 45/18+18/28 9/18+90/28 9/90+18/28 63/18+18/28