Answer: 

Step-by-step explanation:
Before we begin, you need to remember that:
1- when we divide fractions, we convert the division into multiplication and flip the second fraction. In other words: 

2- When multiplying fractions, we multiply the numerators together and the denominators together. In other words: 

Now, for the given:
The given expression is: 

We will start by computing the multiplication:

We can cancel out the n from both the numerator and the denominator, this will leave us with: 

Now, the expression became 

We compute the result based on the rules mentioned above as follows: 

Hope this helps :)