To start off, you should make each fraction have a common denominator.
2*3 = 6
3*2 = 6
The lowest common denominator is six.
so 3 3/6 + 2 2/6 = 5 5/6
Hopefully that helps!
Answer: 39.9797217047
Step-by-step explanation:
2πr = 251.2
πr = 125.6
r = 39.9797217047