# Define an Irrational Number ? - Mathematics

Define an irrational number ?

#### Solution

An irrational number is a real number that cannot be reduced to any ratio between an integer p and a natural number q.

If the decimal representation of an irrational number is non-terminating and non-repeating, then it is called irrational number.

For example sqrt3=1.732..........

Concept: Concept of Irrational Numbers
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#### APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 1 Number Systems
Exercise 1.4 | Q 1 | Page 31

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