Answer
$0.\overline{34} = \dfrac{34}{99}$
Work Step by Step
The repeating decimal $0.\overline{a}$ where $a$ is an integer and $10 \le a \le 99$ is equal to $\frac{a}{99}$.
Thus, the given repeating decimal when expressed as a quotient of two integers in lowest terms is:
$0.\overline{34} = \dfrac{34}{99}$