Rational vs Irrational

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction 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 the number π rational or irrational?

Back

Irrational.

Front

What is the square root of 36?

Back

The square root of 36 is 6, which is a rational number.

Front

What kind of number is -3?

Back

-3 is a rational number.

Front

What are whole numbers?

Back

Whole numbers are non-negative integers, including zero (0, 1, 2, 3, ...).

Front

Is -5/8 a rational number?

Back

Yes, -5/8 is a rational number because it can be expressed as a fraction of two integers.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions.

Front

Can a whole number be an irrational number?

Back

No, whole numbers are always rational.

Front

What is an example of an irrational number?

Back

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