Question 3: Which of the following fractions cannot be written as a finite decimal?

\(\frac{{15}}{{108}} = \frac{5}{{36}}\text{ has denominator }36 = {2^2}{.3^2}\text{ yes 3 is a prime divisor other than 2 and 5. Therefore } \frac{{15}}{{108}}\text{ cannot be written as a finite decimal. } \)