Rational or irratinal

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

Front

Give an example of a rational number.

Back

Examples of rational numbers include 1/2, 3, -4, and 0.75.

Front

Give an example of an irrational number.

Back

Examples of irrational numbers include √2, π (pi), and e (Euler's number).

Front

Is the number 0.333... rational or irrational?

Back

Rational. It can be expressed as 1/3.

Front

Is the number √3 rational or irrational?

Back

Irrational. It cannot be expressed as a fraction of two integers.

Front

What is the sum of two rational numbers?

Back

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

Front

What is the product of two irrational numbers?

Back

The product of two irrational numbers can be either rational or irrational.

Front

Is the number -5 rational or irrational?

Back

Rational. It can be expressed as -5/1.

Front

Is the number 0 an irrational number?

Back

No, 0 is a rational number because it can be expressed as 0/1.