You will explain what is the differences between irrational and rational. Also show an example of irrational and example of rational, then you will explain why adding to rational numbers is rational. Also explain why when adding a rational number and irrational number is irrational.
Go to this website to find notes to help you understand the topic.
http://mathbitsnotebook.com/Algebra1/RatIrratNumbers/RNRationalSumProduct.html
Rational + Irrational = Irrational
See what is the differences between irrational and rational