Rational and Irrational Numbers

Front

What is a rational number?

Back

A rational number is a number that can be expressed as a fraction, where both the numerator and denominator are integers.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction. Its decimal form goes on forever without repeating.

Front

Is 9.6 a rational number?

Back

Yes, 9.6 is a rational number because it can be expressed as 96/10.

Front

Is √45 a rational number?

Back

No, √45 is an irrational number because it cannot be expressed as a fraction.

Front

What are examples of rational numbers?

Back

Examples include integers like -1, 0, 1, fractions like 1/2, and decimals like 0.75.

Front

What are examples of irrational numbers?

Back

Examples include √2, π (pi), and the number e.

Front

Does an irrational number have a pattern?

Back

No, an irrational number does not have a pattern in its decimal representation.

Front

Is -17.565 a rational number?

Back

Yes, -17.565 is a rational number because it can be expressed as a fraction.

Front

What type of number is π?

Back

π is an irrational number.

Front

Can rational numbers be whole numbers?

Back

Yes, whole numbers are also rational numbers because they can be expressed as a fraction with a denominator of 1.