Simplify k^120/k^30.

To simplify the expression, we can use the exponent rule that states when dividing two numbers with the same base, we subtract the exponents.

So, \[\frac{k^{120}}{k^{30}} = k^{120-30} = k^{90}.\]

Therefore, $\boxed{k^{90}}$ is the simplified expression.

To simplify the expression k^120/k^30, we can apply the division property of exponents. When dividing two terms with the same base, we can subtract their exponents.

In this case, we have:
k^120/k^30 = k^(120-30) = k^90

Therefore, the simplified form of the expression k^120/k^30 is k^90.

To simplify the expression k^120/k^30, you can use the properties of exponents. Specifically, when dividing two numbers with the same base, you subtract the exponents. Here's how you can do it step by step:

Step 1: Write out the expression.
k^120/k^30

Step 2: Apply the property of exponents by subtracting the exponents.
k^(120-30)

Step 3: Simplify the exponent.
k^90

So, the simplified form of k^120/k^30 is k^90.