Add 18/84 and 28/9
1st number: 18/84, 2nd number: 3 1/9
18/84 + 28/9 is 419/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
18/84 = 18 × 3/84 × 3 = 54/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
28/9 = 28 × 28/9 × 28 = 784/252 - Add the two like fractions:
54/252 + 784/252 = 54 + 784/252 = 838/252 - 838/252 simplified gives 419/126
- So, 18/84 + 28/9 = 419/126
In mixed form: 341/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+28/9 18/84+56/9 18/84+28/18 54/84+28/9 18/84+84/9 18/84+28/27 90/84+28/9 18/84+28/45 18/84+28/63