Rational and irrational numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction or ratio of two integers, where the denominator is not zero. Examples include integers, fractions, and terminating or repeating decimals.

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. Examples include √2, √3, and π.

Front

Is √7 a rational or irrational number?

Back

Irrational

Front

Is √2 a rational or irrational number?

Back

Irrational

Front

What types of numbers are included in rational numbers?

Back

Rational numbers include integers, fractions, terminating decimals, and repeating decimals.

Front

Convert 11/20 from a fraction to a decimal.

Back

.55

Front

Round √155 to the nearest hundredth.

Back

12.45

Front

What is the decimal representation of 1/4?

Back

.25

Front

What is the decimal representation of 3/8?

Back

.375

Front

Is 0.333... a rational or irrational number?

Back

Rational (it can be expressed as 1/3).