Rational & Irrational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction or 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 simple fraction; it cannot be written as a ratio of two integers.

Front

Is √25 a rational or irrational number?

Back

Rational

Front

Is -√4 a rational or irrational number?

Back

Rational

Front

What type of number is represented by the decimal 0.141414... ?

Back

Rational

Front

What type of number is represented by the fraction 1/2?

Back

Rational

Front

What is the value of pi (π) approximately?

Back

3.141592... (Irrational)

Front

Is the number 0 a rational number?

Back

Yes, because it can be expressed as 0/1.

Front

Is the number 1.5 a rational number?

Back

Yes, because it can be expressed as 3/2.

Front

What is an example of an irrational number?

Back

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