Pi belongs to a huge mathematical group called irrational numbers, which go on forever and cannot be written as fractions.

The most familiar real numbers are the rational numbers — ordinary fractions whose numerator and denominator are integers. These are precisely the real numbers whose decimal expansions either ...

A rational number can be written exactly in the form \(\frac{a}{b}\), where 𝑎 and 𝑏 are integers, while an irrational number cannot.

\(\frac{\sqrt{2}}{2}\) \(\frac{\sqrt{6}}{2}\) \(\frac{5 \sqrt{3}}{6}\) Multiply the numerator and denominator by \(\sqrt{3}\). It is not wrong to multiply by \(2\sqrt ...

But how do we know that pi is an irrational number? Rational numbers, which make up the majority of numbers we use in day-to-day life (although less than half of all possible numbers), can be ...