How do you take the derivative of x^(1/5)

please.. im confused. i know i needa subtract 1 from 1/5 and from there im lost on the fractions.

f(x) = x^(1/5)

f'(x) = 1/5 * x^(1/5 -1)

f'(x) = 1/5 * x^(-4/5)

f'(x) = 1/5 / x^(4/5)

Hope this is clear!

(1/5) - 1 is the same as (1/5) - (5/5) = - (4/5)

d/dx of x^(1/5)= (1/5)*x^((1/5)-1)
=(1/5)*x^(-4/5)