Add 20/9 and 28/4
1st number: 2 2/9, 2nd number: 7 0/4
20/9 + 28/4 is 83/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
20/9 = 20 × 4/9 × 4 = 80/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
28/4 = 28 × 9/4 × 9 = 252/36 - Add the two like fractions:
80/36 + 252/36 = 80 + 252/36 = 332/36 - 332/36 simplified gives 83/9
- So, 20/9 + 28/4 = 83/9
In mixed form: 92/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+28/4 20/9+56/4 20/18+28/4 20/9+28/8 60/9+28/4 20/9+84/4 20/27+28/4 20/9+28/12 20/45+28/4 20/9+28/20 20/63+28/4