what is an irratinoal number
An irrational number can be two things. It can be a number that doesn't terminate and doesn't repeat (for example, pi) or it can be a rational number divided by 0, which would be undefined.
An irrational number is a real number that cannot be expressed as a ratio of integers, like a fraction. Irrational numbers, when written as decimal numbers, do not end, or repeat.