Rational and Irrational Numbers 
Rational numbers are numbers that can be expressed as a ratio
of two integers. All rational numbers can be expressed as either
terminating decimals or repeating decimals examples of rational numbers  ,,,
Irrational numbers are numbers that are nonterminating and nonrepeating decimals. examples of irrational numbers  Pi, which is the ratio of the circumference of a circle divided by the diameter, this number is a nonrepeating/nonterminating decimal, is also a nonrepeating/nonterminating decimal
