Rational vs. Irrational Numbers

Front

What is a rational number?

Back

A number that can be written as a fraction; it can be made by dividing two integers.

Front

What is an irrational number?

Back

A real number that cannot be written as a fraction; they also go on forever and do not repeat.

Front

What is the square root of a non-perfect square?

Back

Irrational.

Front

Is the number 91 rational or irrational?

Back

Rational.

Front

Is the number -14 rational or irrational?

Back

Rational.

Front

Can a whole number be a rational number?

Back

Yes, all whole numbers are rational numbers because they can be expressed as a fraction with a denominator of 1.

Front

What is an example of an irrational number?

Back

The square root of 2 (√2) is an example of an irrational number.

Front

What is the decimal representation of a rational number?

Back

It either terminates or repeats.

Front

What is the decimal representation of an irrational number?

Back

It goes on forever without repeating.

Front

Is 0.75 a rational number?

Back

Yes, because it can be expressed as 3/4.