Discover what a rational number is, a type of number that can be expressed as the quotient of two integers, with a finite or repeating decimal representation.

A rational number is any number that can be expressed as a fraction where the numerator and the denominator are both integers and the denominator is not zero.

Rational numbers can be written in the form a/b, where a and b are integers, and b is not equal to zero. For example, 3/4, -2/5, and 7/1 are all rational numbers.

Rational numbers can also be represented as decimal numbers. If the decimal form of a rational number ends, it is called a "terminating decimal." For example, 0.75 and 2.1 are rational numbers with terminating decimals. If the decimal form of a rational number repeats the same sequence of digits, it is called a "repeating decimal." For example, 0.333... (where the 3's repeat indefinitely) and 0.4545... are rational numbers with repeating decimals.

All integers are rational numbers because they can be written as a fraction with a denominator of 1. For example, 5 can be written as 5/1, making it a rational number.

In conclusion, rational numbers are numbers that can be expressed as fractions or as terminating/repeating decimals, and they include all integers as well.

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