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Rational and irrational numbers
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.
Learn what rational and irrational numbers are and how to tell them apart.
Learn how to tell which numbers are rational and which are irrational.
Practice identifying whether numbers are rational or irrational.
Practice using a calculator to find the approximate decimal values of irrational numbers.