Answer:
23/6 or 3 5/6
Explanation:
1 2/3 = 5/3
2 1/6 = 13/6
To add these we need to make the denominators the same. To do this we need to double the 5/3 and that will make the denominator 6 and then will be able to be added.
5/3= 5x2/ 3x2= 10/6
10/6 + 13/6 = 23/6 or 3 5/6
Hope I was able to help!