....isn't the quotient of integers always rational? Simplify that monstrosity.
sorry not good with using this site yet. basically the numerator is a ratio of integers minus a ratio of integers and the denominator is a ratio of integers. I'm having trouble proving that the result is a rational number.
I made my original equation more clear.
Last edited by Mathwizard4; Mar 2nd 2010 at 06:24 PM.
First, you need to make sure that you never divide by 0.
Second, all integers are rational, and rational numbers are closed under addition, subtraction, multiplication and division by a non-zero (i.e., the result of the operation is again rational).