Answer
$\frac{1}{3}$ is larger by $0.000333\bar3$
Work Step by Step
We see that $\frac{1}{3}$ is larger (it has more repeating 3's):
$\displaystyle \frac{1}{3}=0.3333\bar3 \gt 0.333$
$\displaystyle \frac{1}{3}$ is larger by:
$0.3333\bar3-0.333=0.000333\bar3$
