Converting Fractions to Decimals
(KS3, Year 7)

The Lesson

A fraction can be converted to a decimal.

How to Convert a Fraction to a Decimal

Converting a fraction to a decimal is easy. Divide the top number of the fraction by the bottom number of the fraction.


What is 15 as a decimal?



Divide the top number (called the numerator) of the fraction (1) by the bottom number (called the denominator) of the fraction (5).

1 ÷ 5 = 0.2


15 converted to a decimal is 0.2.

Lesson Slides

The slider below gives another example of converting a fraction to a decimal. Open the slider in a new tab

Interactive Widget

Here is an interactive widget to help you learn about converting fractions to decimals.

What Is a Fraction?

Fractions consist of a numerator and a denominator.

The denominator tells you how many equal parts the whole is divided into, and the numerator tells you how many of these parts there are.
Help Us To Improve Mathematics Monster

  • Do you disagree with something on this page?
  • Did you spot a typo?
Please tell us using this form

See Also

What is a fraction? What is a numerator? What is a denominator? Learn more about converting fractions to decimals ( interactive widget)