Rational and Irrational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a ratio 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 ratio of two integers.

Front

Is pi (π) a rational or irrational number?

Back

Irrational

Front

Can the number 4π be classified as rational or irrational?

Back

Irrational

Front

What is an example of a rational number?

Back

An example of a rational number is 1/2 or 0.75.

Front

What is an example of an irrational number?

Back

An example of an irrational number is √2 or π.

Front

What does it mean for a decimal to be repeating?

Back

A repeating decimal is a decimal that has digits that repeat infinitely, such as 0.333... which is equal to 1/3.

Front

Is the decimal 0.141414... rational or irrational?

Back

Rational

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

What is a whole number?

Back

A whole number is a non-negative integer, including zero.