Question

Find irrational number between $\frac{9}{6}$ and $\frac{4}{5}$ ?

Answer 1

An irrational number between $a$ and $b=\sqrt{ab}$

So, An irrational number between $\frac{9}{6}$ and $\frac{4}{5}=\sqrt{\frac{9}{6}\times \frac{4}{5}}=\sqrt{\frac{6}{5}}$