A variable (m) divided by a number (5)
7 4/5 multiply 4/5 by 2 which will be 7 8/10+ 12 1/10 whigh will end up as 19 9/10
You have to multiply 81 to itself -1/4 times
the answer is 0.00308641975
What you did is correct. However the one you get is the tangent value of x. you have to find out the tan inverse of that value to find out the actual degree.
tan(x) = 33.8 / 57.6
tan(x) = 0.587
x = tan^-1 (0.587)
x = 30.4 degrees