Rational and Irrational Numbers

Front

What is a rational number?

Back

A rational number is a number that can be written as a fraction, where both the numerator and denominator are integers.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it has a non-repeating, non-terminating decimal expansion.

Front

Is -17.565 a rational or irrational number?

Back

Rational

Front

Is 0.141414141414... a rational or irrational number?

Back

Rational

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer.

Front

Is √27 a rational or irrational number?

Back

Irrational

Front

Between which two integers does √27 lie on a number line?

Back

5 and 6

Front

Can a rational number be a repeating decimal?

Back

Yes, a rational number can be a repeating decimal.

Front

Can a rational number be a whole 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

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