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 -13 rational or irrational?

Back

-13 is a rational number because it can be expressed as -13/1.

Front

What is the square root of 121?

Back

The square root of 121 is 11.

Front

Which of the following numbers is rational: √16, √2, or π?

Back

√16 is rational because it equals 4, while √2 and π are irrational.

Front

What is the definition of an integer?

Back

An integer is any whole number, positive or negative, including zero.

Front

Can a natural number be negative?

Back

No, natural numbers are positive whole numbers starting from 1.

Front

What type of number is -14?

Back

-14 is an integer and a rational number, but it is not a natural number.

Front

What is the difference between a whole number and an integer?

Back

Whole numbers include all non-negative integers (0, 1, 2, ...), while integers include all whole numbers and their negative counterparts.

Front

Is 0 considered a rational number?

Back

Yes, 0 is a rational number because it can be expressed as 0/1.