Definition of Rational Numbers: Rational numbers are numbers that can be written as a fraction of two integers (a/b) where b â‰ 0.

Examples of Rational Numbers: Fractions like 2/3, integers like -2, terminating decimals like 0.7, and recurring decimals like 0.3 recurring (1/3) are all rational numers.

Irrational Numbers: Irrational numbers cannot be expressed as a fraction and have non-terminating, non-repeating decimals (e.g., $\pi$ and $\sqrt{2}$).

Locating Rational Numbers on a Number Line: Start at 0, move the whole number part first, and then move the fractional part.

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