# Fractions of a set of objects

## In a nutshell

A fraction helps you to describe parts of whole objects. Fractions have one number on top of another, separated by a fraction line. They are written using a numerator (top number) and denominator (bottom number).

##### Example 1

*A pizza is cut into $6$ equal slices. One slice is a part of the pizza and there are six parts in total. What fraction of the pizza is this?*

*Each part of the pizza here is called a sixth and is written:*

$\underline{\dfrac{1}{6}}$

## Writing fractions

#### Procedure

- Count how many parts there are in total. This will be the denominator.

*Tip:** If the shape has not been split up yet, divide it yourself into equal parts.* - Count how many parts are highlighted or 'shaded'. This will be the numerator.

- Write the numerator on top of the fraction line and the denominator underneath the fraction line.

##### Example 2

*The grey section in the following image represents one part. What fraction of the image is shaded?*

Divide the shape into equal parts:

*Count how many parts there are in total: $4$*

*Count how many parts are shaded: $1$*

*Write the numerator and denominator, separated by the fraction line.*

*$\underline{\frac{1}{4}}$*