Rational Numbers And Irrational Numbers Definition. Real numbers also include fraction and decimal numbers. To better understand irrational numbers, we need to know what a rational number is and the distinction it has from an irrational number.
Π = 3.1415926535897932384626433832795 (and counting) Irrational numbers are numbers that can’t be written as a fraction/quotient of two integers. Numbers such as π and √2 are irrational numbers.
A rational number is one that can be written as the ratio of two integers.
We aren't saying it's crazy! If written in decimal notation, an irrational number would have an infinite number of digits to the right of the decimal point, without repetition. A rational number is one that can be written as the ratio of two integers. For example all the numbers below are rational:
