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What is the use of rational numbers?
How are rational numbers different from irrational numbers?
Rational numbers are numbers that can be expressed as the ratio of two integers, such as 3/4, 5/8, or 2/5. Irrational numbers cannot be expressed as such a ratio and cannot be represented by terminating or repeating decimals. Examples of irrational numbers include pi, the square root of two and the golden ratio.