6 1/3 + k +3 5/6 + 5 1/2 =26 1/6
First I made all the denominators 6:
6 2/6 + k + 3 5/6 + 5 3/6 =26 1/6
-6 2/6 from each side:
k+3 5/6 + 5 3/6 =19 5/6
- 3 5/6 from each side:
k+5 3/6=16
-5 3/6 from each side:
k=10 3/6
simplify:
k=10 1/2
Hope this helps :)