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The concept of a rational number. Properties of operations with rational numbers

Rational numbers are numbers that can be written as a fraction mn\frac{m}{n} where mm and nn are integers and n0n\neq 0. This includes integers, terminating decimals, and repeating decimals. For rational numbers the main properties of operations still hold: commutative, associative, distributive, and the special roles of zero and one.
Rational number: mn\frac{m}{n}, n0n\neq 0
Properties of operations help simplify calculations
Zero and one play special roles in operations
Properties of operations
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