Fractions are parts of whole numbers.

You have probably heard of things like;

When describing **part** of a number we need to know **how big** that part is, and that is what the name of the fraction tells us - how big is that part.

For example, half means that the original thing was divided in half (into 2 equal pieces). Like this apple.

Or a third, which means that the original object was divided into 3 equal parts.

Like this wonton pastry:

Unit fractions simply mean that we are only interested in looking at ONE of those pieces.

To identify a shaded fraction, or what fraction something is of another, we need to know:

- How many pieces the original shape is cut up into? (this number goes on the bottom of the fraction), and
- How many parts do we have, or are shaded. (this number goes on the top of the fraction). For unit fractions, we always have one of them.

#### Worked examples

##### Question 1

What fraction of the rectangle is shaded?

##### Question 2

What fraction of the circle is shaded?