Is 0.3 a rational number?

Understand the Problem

The question is asking whether 0.3 qualifies as a rational number. To determine this, we will clarify that a rational number is any number that can be expressed as a fraction \( \frac{a}{b} \) where ( a ) and ( b ) are integers and ( b \neq 0 \. Since 0.3 can be expressed as ( \frac{3}{10} \, it is indeed a rational number.

More Information

0.3 is a rational number because it can be expressed as the fraction 3/10, which is a ratio of two integers.

Tips

A common mistake is to confuse terminating decimals like 0.3 with irrational numbers. Remember, if a decimal terminates or repeats, it's rational.

Sources

• Is 0.3 a rational irrational number, integer, whole? - Socratic - socratic.org
• Is 0.3 a rational number? - Answers - math.answers.com
• Is 0.3 a rational number, irrational number, integer, or whole number? - homework.study.com