If Find the least common denominator. $\frac{14}{z^{2}}, \frac{98}{z^{3}}$ The LCD is $\square$. (Simplify your answer.)

Step 1 ：The least common denominator (LCD) is the least common multiple (LCM) of the denominators of the fractions. In this case, the denominators are \(z^{2}\) and \(z^{3}\).

Step 2 ：The LCM of these two denominators is the one with the highest power of \(z\), which is \(z^{3}\).

Step 3 ：Final Answer: The least common denominator (LCD) is \(\boxed{z^{3}}\).