What is Rational and Irrational?

Rational is a number that is a fraction or a whole number. irrational is a number that goes on and on

Rational is the number that cam be represented by an ordinary fraction, as:

2/5
0.6
1.3333.

Irrational is the number that cannot be represented by an ordinary fraction. It have infinity decimals  after decimal point and it is non-periodic, as

0,01001000100001.

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