Division in Haskell

Question

I\'m making a function in Haskell that halves only the evens in a list and I am experiencing a problem. When I run the complier it complains that you can\'t perform division

Answer 1

I should add that using map would simplify the code.

HalfIfEven n
  | even n = n `div` 2
  | otherwise = n

halfEvens = map halfIfEven