Answer :

konrad509
[tex]\frac{2}{5}=0.4\\ \frac{3}{4}=0.75\\[/tex]

[tex]\boxed{\sqrt{\frac{3}{4}\pi}-1}\\ \boxed{e-2}[/tex]
sairah
[tex] \frac{2}{5} = 0.4[/tex]

[tex] \frac{3}{4} = 0.75[/tex]

There are many irrational numbers between these two fractions.

Two of them are - 

[tex]0.40121121112...[/tex]

[tex]0.40232232223...[/tex]