How do you make a fraction into decimals on a certain calculator I am having problems with?

I have a Casio fx-300ES Natural Display. Whenever I put in a division problem that is not equal, it comes out as a fraction. Always. Example: I put in 33/8 and it just came up as 33/8. As you can see, this is a problem, but I'm sure there is a way to make it come up as a decimal. How do I do this?