Numbers that can be represented on a number line encompass both rational and irrational numbers. Rational numbers are those that can be expressed as a fraction or a ratio of two integers.
Real Numbers: What are they? Web Resource: http://www.mathsisfun.com/numbers/real-numbers.html
Irrational Numbers
Non-repeating decimals and non-terminating
Web Resource: http://www.mathsisfun.com/irrational-numbers.html
Definition: Irrational numbers are numbers than cannot be written as a ratio of two numbers or a fractions; they can only be written as non-repeating or non-terminating decimals.
Real Numbers: Numbers that exist on a number line
Rational Numbers
Repeating Decimals
Terminating Decimals
Web Resource: http://www.mathsisfun.com/rational-numbers.html
Definition: Rational Numbers can be written as a ratio of two numbers, as a fraction, and as repeating or terminating decimals.