Rational and Irrational Numbers

Front

Which number is a rational number?

Back

1/4 is a rational number because it can be expressed as a fraction of two integers.

Front

Which number is irrational?

Back

√45 is irrational because it cannot be expressed as a fraction of two integers.

Front

What is the value of √25?

Back

√25 = 5, which is a rational number.

Front

A fraction is which type of number?

Back

A fraction is a rational number.

Front

What type of number is π?

Back

π is an irrational number because it cannot be expressed as a fraction.

Front

Define rational numbers.

Back

Rational numbers are numbers that can be expressed as a fraction a/b, where a and b are integers and b ≠ 0.

Front

Define irrational numbers.

Back

Irrational numbers are numbers that cannot be expressed as a simple fraction; their decimal representation is non-repeating and non-terminating.

Front

Is 0 a rational number?

Back

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

Front

Is -3/4 a rational number?

Back

Yes, -3/4 is a rational number because it can be expressed as a fraction.

Front

What is an example of an irrational number?

Back

An example of an irrational number is √2.