If the numerator of a fraction is a prime number, can the fraction be simplified? why or why not?

Yes, a fraction with a numerator that is prime can still be simplified.
The definition of a prime number is that it's only two factors are 1 and itself. 
If the numerator is prime, it can still be reduced or simplified because it can be divided by itself to get 1. 

For example, the number 7 is a prime number. It's only two factors are 7 and 1. 
The fraction 7/14 is a fraction where numerator is prime. 

 7  = 1 because 7  ÷ 7 = 1
14    2              14 ÷ 7 = 2

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good

Here, feel free to ask if there are any questions