In this activity, we will practise adding and subtracting fractions.

You may be able to count **on or back** in fractions mentally.

We can also use number lines to help us solve the problems by counting **on** or counting **back**.

Let's take a look at this number line to try an **addition** problem.

To add fractions with the **same denominator**, we just count **on**.

Now let's try a **subtraction** problem.

To subtract fractions with the** same denominator**, we just count **back**.

You can draw out a number line if it helps you to answer the questions in this activity, but why not try doing them mentally instead and see how you get on?

**Example**

What is 3/9 + 2/9?

The two fractions have the same bottom number (denominator) so all we need to do is to add the two top numbers together (the numerators): 3 + 2 = 5

We don't add the bottom numbers - this stays as 9

So, our answer is** 5/9**

What is 7/6 - 3/6?

The two fractions have the same bottom number (denominator) , so we simply subtract the two top numbers (numerators): 7 - 3 = 4

We don't subtract the bottom numbers - this stays as 6

Our answer is** 4/6**

Does this make sense? Are you ready to have a go at some questions?