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 square root of 2 a rational number?

Back

No, the square root of 2 is an irrational number.

Front

Which of the following is not a rational number: √2, 1/2, or -3?

Back

√2 is not a rational number.

Front

What is a perfect square?

Back

A perfect square is an integer that is the square of an integer.

Front

Give an example of a perfect square.

Back

Examples of perfect squares include 1, 4, 9, 16, 25, etc.

Front

Is 198 a perfect square?

Back

No, 198 is not a perfect square.

Front

Is 125 a perfect square?

Back

No, 125 is not a perfect square.

Front

Classify the number -17: rational or irrational?

Back

-17 is a rational number.

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.