To find one tenth of 119.9 just divide 119.9 by 10
I'm not gonna give the answer because you have to solve it. Sorry. But I'll help you get it.
Step 1: solve the equation for each angle
Step 2: Add the totals from each angle
Step 3: Divide the total by 360
Step 4: You got your answer
I hope this helped! I'm sorry I answered really late.
If feet:
34' 4" - 8' = 26' 4"
if inches: = 33' 8"