UI Now that you've created your hypotheses, it's time to prove them. First, look at the sum of two rational numbers. Let's say
they are two rational numbers, and y. Because theyre rational, they can be written as a ratio of integers. Letxe andy
4. where a, b, c, and d are integers and band d do not equalo. The process for finding the sum x + y in terms of a, b, c,
and d is shown,
Reason
Statement
x + y = f & 9
substitution
(5) () + (?) (5)
Croate common denominators,
Simplify
Based on this sum and using the closure property of Integers, who conclusion can you make about the sum of two
rational numbers? Explain your answer.