Question

Select "Rational" or "Irrational" to classify each number.
Rational Irrational
4/5
√4/5
π√4
π√25/4

Answer 1

rational means the number can be written as "ratio" i.e. a fraction.
whole numbers such as 1,2,3,... can be written as 1/1 , 2/1, 3/1, so they are rational
some numbers cannot be written this way: roots of most numbers, pi, e are examples of irrational numbers.