State whether the following rational number has a terminating decimal expansion or not. If it has,then find it: $\frac{17}{343}$

(N/A) To determine if a rational number $\frac{p}{q}$ has a terminating decimal expansion,we check the prime factorization of the denominator $q$.
If $q = 2^n \times 5^m$,where $n$ and $m$ are non-negative integers,the decimal expansion is terminating.
Here,the denominator is $343 = 7^3$.
Since the prime factorization of the denominator contains a factor other than $2$ or $5$ (specifically,$7$),the rational number $\frac{17}{343}$ does not have a terminating decimal expansion; it has a non-terminating repeating decimal expansion.