Rational Numbers

Heey 9-05! In case you guys don't know, Mr. Backé assigned us to post a blog about the term “Rational Numbers” mean and where it came from. Not that hard. Just search it online and type it here and publish. Oh, and you can also put a few examples. (:

Rational numbers are numbers capable of being expressed as an integer or a quotient of integers, excluding zero as a denominator.
e.g. 1.75 because it can be written as 7/4
0.001 because it can be written as 1/1000

Irrational numbers is a number that cannot be written as a simple fraction - the decimal goes on forever without repeating. It is called irrational because it can't be written as a ratio or fraction.
e.g. pi or π is irrational because the value is 3.1415926535897932384626433832795.....