Video Tutorial: Rational Numbers: Rational Numbers and Irrational Numbers

What Are Rational Numbers?

A Brief Review of Integers

Integers include the whole numbers, zero, and

positive numbers 1, 2, 3, etc., but also includes a different class of numbers, negative numbers.

You can use a number line to represent the integers.

Notice that every integer and its opposite is the same distance from 0 on the number line. Also, the arrow heads on the number line mean that the integers extend to infinity.

Rational Numbers

All rational numbers can be written this way.

Rational numbers can be written in different ways.

Integers are examples of rational numbers.

If a number cannot be written as the ratio of two integers, then it is an irrational number.

Rational numbers can be graphed on a number line.

This is part of a collection of video tutorials on the topic of Rational Numbers.

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