What does $\pi$ equal?

Since $\pi$ is a irrational number, it obviously cannot be represented as a fraction.

We have a well known inequality which show $\displaystyle\frac{22}{7}$ and $\displaystyle\pi$ are different

$0 <$ $\displaystyle\int_{0}^1 \frac{x^4(1-x)^4}{1+x^2} dx$ $< \displaystyle\frac{22}{7} - \displaystyle\pi$ .