Answer
$\displaystyle \frac{4}{29}$
Work Step by Step
There are 58 national parks in the US.
The 8 national parks of Alaska make $\displaystyle \frac{8}{58}$ of the total number of parks.
$8=2\times 4=2\times 2\times 2$
$58=2\times 29$
$2$ is the only common factor.
Divide both the numerator and denominator of $\displaystyle \frac{8}{58}$ with 2, to obtain
$\displaystyle \frac{4}{29}$
