# Irrational Number

Written by Jerry Ratzlaff on . Posted in Algebra

An irrational number is a number that cannot be written as a fraction.

Irrational Number

• $$\pi = 3.141592.....$$
• $$\sqrt 2 = 1.414213$$
• $$\frac {19}{4} = 0.052632$$

Rational Number

• $$\sqrt 9 = 3$$
• $$\frac {15}{3} = 5$$