In this activity, you will need to use the skills you have previously practised when adding and subtracting fractions. You will also be asked to add mixed numbers.

**Let's recap,**

**Adding and subtracting fractions:**

When we add or subtract fractions, we try to get them to have the same denominators.

We do this by using the **lowest common multiples.**

For example, if we want to subtract:

We look for the smallest number that 11 and 5 will go into.

This will be 55, so we change both fractions into 55ths.

11 x 5 = 55 5 x 11 = 55

We multiply the top and bottom of by 5:

We multiply the top and bottom of by 11:

So now we have:

Answer =** **

**Adding or subtracting Mixed Numbers**

Adding or subtracting mixed numbers involves 4 steps.

What is **?**

**1. Add or subtract the whole numbers**

3 + 7 = 10

**2. Add or subtract the fractions.**

The lowest common multiple is 45, firstly, convert both fractions to 45ths.

**3. Can you simplify the answer?**

Yes! Both numbers can be divided equally by

**4. The final piece of the puzzle! We add the whole number from Step 1 and the fraction from Step 3 together.**