if that numbers comes from a float variable, should not be problem:
var number1 : float = 1
var number2 : float = 30
var calc : float = -(number1/number2)
# print -> 0.033333333
Problem is the implicit declaration of integers of that operation: " -(int1/int30)"
You can use too: -( float(1) / float(30) )
An operation like this directly with numbers is not common in game code, but you can cast all the numbers or use "dot zero" to allow the interpreter to know the type.