Rational and irrational numbers

3 videos
2 skills
More numbers than you probably imagine can be represented as the ratio of two integers. We call these rational numbers. But there are also really amazing numbers that can't. As you can guess, we call them irrational numbers.

Introduction to rational and irrational numbers

VIDEO 5:55 minutes
Learn what rational and irrational numbers are and how to tell them apart.

Recognizing irrational numbers

VIDEO 2:18 minutes
Learn how to tell which numbers are rational and which are irrational.

Recognizing rational and irrational numbers

PRACTICE PROBLEMS
Practice identifying whether numbers are rational or irrational.

Comparing irrational numbers with a calculator

PRACTICE PROBLEMS
Practice using a calculator to find the approximate decimal values of irrational numbers.