## school 5 years ago show me some irrational numbers, explain what they are!

Basically, a irrational number cannot be formed as a rational number. If you have the number 1.5 it can be formed as a rational number 3/2. Therefore 1.5 is not a irrational number. $\sqrt{2}$ is one irrational number, since you can never represent it accurately as a/b (rational number). $\pi$ and e are also irrational numbers that you cannot represent accurately in the form a/b, as a rational number.