Find f '(x) and f '' (x)

I believe this states find f prime and f double prime.

f(x) = x / 3 + e^(x)

Okay so I know that the derivative of e ^(x) is e^x

and that the derivative of x is 0 right?

Okay and I'm going to use the quotient rule:

f(x) / g(x) = [ g(x)f '(x) - f(x) g' g(x) ] / [ (g(x))^(2) ]