Rational & Irrational Numbers

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. Examples include 1/2, -3, and 0.75.

Front

What are irrational numbers?

Back

Irrational numbers are numbers that cannot be expressed as a simple fraction. They have non-repeating, non-terminating decimal expansions. Examples include √2, π, and e.

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Back

168.4

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Back

40 and -40

Front

What is the area of a square if one side is 11 inches?

Back

The area is 121 square inches, calculated as side × side = 11 × 11.

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Back

Front

What is the sum of two rational numbers?

Back

The sum of two rational numbers is always a rational number.

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What is the product of a rational number and an irrational number?

Back

The product of a non-zero rational number and an irrational number is always an irrational number.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions.

Front

Provide an example of an irrational number.

Back

An example of an irrational number is π (pi), which is approximately 3.14159.