Question

It is on Irrational number or Rational Number. Give Reason for your answer​

Answer 1

Rational number.

First, let us know what is a rational and and Irrational number.

A number which can be expressed as  where 'a' and 'b' both are integers and  is a rational number.

The square roots, cube roots, etc., of natural numbers are irrational numbers; if their exact values cannot be obtained.

of  doesn't exist.

A non-terminating and non-recurring decimal is an irrational number.

Example :- 0.42434445 ............. and so on.

Special numbers like  are irrational numbers as their exact value can't be obtained.

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Here,

2.56 is a rational number as it is completely satisfying all the properties of a rational number. It can be expressed as  

is expressed in the form of a/b where b ≠ 0 and both are integers.

Therefore, 2.56 is a Rational number.

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