Question

what are  irrational number?

Answer 1

a irrational number is a real number that cannot be written as simple fraction.
                                 irrational means not rational

Answer 2

the numbers which cannot be written as fraction are called irrational number.eg-0

Answer 3

Numbers which cannot be written in the form of P/Q are called irrational numbers. eg-√2,√3,√5