Question

Insert 2 irrational numbers between 2/5 and 3/4

Answer 1

<u />$\frac{2}{5} = 0.4$

$\frac{3}{4} = 0.75$

There are many irrational numbers between these two fractions.

Two of them are - 

$0.40121121112...$

$0.40232232223...$

Answer 2

$\frac{2}{5}=0.4\\ \frac{3}{4}=0.75$

$\boxed{\sqrt{\frac{3}{4}\pi}-1}\\ \boxed{e-2}$