How To: Rational & Irrational Numbers

What Is a Rational Number?

A rational number is a number that can be written as a ratio and a/b.

What Is an Irrational Number?

An irrational number is a number that can't be written as a/b.

Examples of Rational Numbers

• Repeating decimals (EX: 0.36363636)
• Terminating decimals (EX: 0.05)
• Whole numbers (EX: 8,9,12,13)

Examples of Irrational Numbers

• Endless, non repeating digits (EX: Pi = 3.141592......)

Practice Time

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

Citations

http://www.factmonster.com/ipka/A0876704.html