Rational vs Irrational Numbers and Repeating Decimals

Front

What is a rational number?

Back

A rational number is a number that can be written as a fraction.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be written as a fraction.

Front

Is the number 1/2 rational or irrational?

Back

Rational

Front

Is the number √2 rational or irrational?

Back

Irrational

Front

Is the number 0.75 rational or irrational?

Back

Rational

Front

Is the number π rational or irrational?

Back

Irrational

Front

What is a repeating decimal?

Back

A repeating decimal is a decimal fraction that eventually repeats the same sequence of digits.

Front

Is 0.333... rational or irrational?

Back

Rational

Front

Is the number 5 a rational number?

Back

Yes, because it can be written as 5/1.

Front

What is an example of an irrational number?

Back

An example of an irrational number is √3.