1. You plug in 2 1/6 for h so it would be 3 5/6= 1 2/3+ 2 1/6
You put the mixed numbers into improper fractions
3 5/6- 23/6- 3.8
1 2/3- 5/3- 1.6
2 1/6- 13/6- 2.1
Now the equation is>> 3.8=1.6+2.1
That should help you set it up to solve. Don't let the bigger numbers scare you, break them down :)