Question

Which numbers are "irrational" and which numbers are "rational"?

4/5
$\sqrt{4}$ /5
$\sqrt{25}$ /4
$\pi$

Answer 1

if something can be solved to a/b its rational

4/5 is rational already

√4/5 = 2/5 so its rational

√25/4 = 5/4 so its rational

π = is irrational because its 3.14159.....and on and on it can never be rationalized