Question

Which of the following is an irrational number
o 18
o 2.6
o π
o -16/3

Answer 1

The answer is π

Explanation:

An irrational number is a type of real number which cannot be represented as a simple fraction. It cannot be expressed in the form of a ratio.

Answer 2

pi

Explanation:

A rational number can be written as a fraction

18/1 is a fraction

2.6666666 can be written as 2 2/3 = 8/3

-16/3 is a fraction

pi is a non repeating non termination decimal which is irrational