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.
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