A rational number is a number that can be written as a ratio and a/b.
An irrational number is a number that can't be written as a/b.
- Repeating decimals (EX: 0.36363636)
- Terminating decimals (EX: 0.05)
- Whole numbers (EX: 8,9,12,13)
- Endless, non repeating digits (EX: Pi = 3.141592......)
To get some practice, complete these problems https://static.squarespace.com/static/500b33e2e4b0d820d6a28cc3/t/510f3f9ee4b060f86e72d7d9/1359953822221/HW%20--%20Rational%20vs%20Irrational%20Numbers.pdf
Click the link to play a game on rational and irrational numbers http://www.math-play.com/rational-and-irrational-numbers-game/rational-and-irrational-numbers-game.html