Rational vs. Irrational Math8

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction \( \frac{a}{b} \), where \( a \) and \( b \) are integers and \( b \neq 0 \).

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 -10 rational or irrational?

Back

Rational because it terminates.

Front

Is 19.2 rational or irrational?

Back

Rational because it terminates.

Front

Which number is RATIONAL? (Options: \( \sqrt{8}, \sqrt{16}, \sqrt{50}, \sqrt{75} \))

Back

\( \sqrt{16} \) is rational because it equals 4.

Front

Select the number that is IRRATIONAL. (Options: \( \sqrt{16}, \sqrt{116}, \sqrt{27}, \sqrt{81} \))

Back

\( \sqrt{116} \) is irrational.

Front

A fraction is which type of number?

Back

Rational.

Front

What is an example of a rational number?

Back

\( \frac{1}{2} \) is a rational number.

Front

What is an example of an irrational number?

Back

\( \pi \) is an example of an irrational number.

Front

What is the decimal representation of a rational number?

Back

A rational number can either terminate (like 0.5) or repeat (like 0.333...).