# Learn Rational & Irrational Number

# What do you mean by Rational & Irrational Number in math?

An online rational irrational number definition

A rational number is a number that can be written as a ratio.

Rational numbers can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers.

The number 10 is a rational number because it can be written as the fraction 10/1.

## Irrational Numbers

All numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction.

An irrational number has endless non-repeating digits to the right of the decimal point.

The number 22/7 is a irrational number..

**Math Number Symbols**

R - Real Numbers

Z - Integers

N - Natural Numbers

Q - Rational Numbers

P - Irrational Numbers

# Related Number Types

- Integer
- Whole Number
- Digit
- Natural Number
- Odd Number
- Even Number
- Rational Number
- Irrational Number
- Transcendental Number
- Real Number
- Nominal Number
- Ordinal Number
- Arrangement Number
- Abundant Number
- Algebraic Number
- Automorphic Number
- Apocalypsec Number
- Amicable Number
- Aliquot Number
- Almost Perfect Number
- Alphametic Number
- Binary Number
- Catalan Number
- Circular Primes Number
- Complex Number
- Cyclic Number
- Cubic Number
- Congruent Number
- Cardinal Number
- Choice Number
- Composite Number
- Counting Number
- Fibonacci Number
- Fraction