Is 0.4 a rational number?

Understand the Problem

The question is asking whether the number 0.4 can be expressed as a fraction of two integers, which defines a rational number. We will explore the properties of 0.4 in relation to rationality.

More Information

A rational number is any number that can be expressed as the quotient of two integers. Since 0.4 can be written as 4/10, it is a rational number.

Tips

A common mistake is confusing rational numbers with irrational numbers. Remember, rational numbers can be written as a fraction.

Sources

• Is 0.4 rational or irrational? - algebra.com
• Is 0.4 a rational number? - Quora - quora.com
• Determine the Type of Number 0.4 - Mathway - mathway.com