SSRS help with format in expression

Hi

I have the following expression that counts two columns and devide the numbers on each other

=Fix(Sum(IIF(Fields!a_34b_filedebrief.Value = "Signed", 1, 0))/Count(Fields!leadid.Value))

If I use "+" instead of "/" I get the correct result, but with devide I only get 0. I assume it is because the value is less than 1 (ex 0.24). I have tried formatting on the field but it didnt work.

Could the issue be with the use of "Fix" or "Int" in the start of the expression? Is there a way to return the result as a normal decimal? 

Many thanks for answers!