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What is a Rational Number?

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A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. Examples include 1/2, 3, and -4.

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What is an Irrational Number?

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An irrational number is a number that cannot be expressed as a simple fraction. It cannot be written as a ratio of two integers. Examples include pi (π) and the square root of 2 (√2).

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What is a Natural Number?

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Natural numbers are the set of positive integers starting from 1, 2, 3, and so on. They do not include zero or negative numbers.

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What is a Whole Number?

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Whole numbers are all natural numbers including zero. They are non-negative integers: 0, 1, 2, 3, ...

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What is an Integer?

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Integers are whole numbers that can be positive, negative, or zero. Examples include -3, 0, and 5.

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What is the Real Number System?

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The real number system includes all the numbers that can be found on the number line. This includes rational numbers (like fractions and integers) and irrational numbers.

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Classify the number 3.5.

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3.5 is a rational number because it can be expressed as the fraction 7/2.

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Classify the number -7.

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-7 is an integer and also a rational number.

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Classify the number 0.

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0 is a whole number, an integer, and a rational number.

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