Ration numbers can be written as a ratio of two integers ( like a fraction ). Irrational numbers is a real number that cannot be written as a simple fraction.

Kubesh678

2/1, -5/7 , [latex] \sqrt{4} [/latex] are rationals;
[latex] \sqrt{2} , \sqrt{3} , \sqrt{5}, \pi [/latex] are irrationals.