This activity is about finding common multiples of numbers within a given range.

__Example__

Write down two numbers between 20 and 40 that are multiples of __both__ **3** and **4**.

**Answer**

The multiples of **3** are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39... etc.

The multiples of **4** are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52... etc.

The common multiples are the ones that appear in both lists and are shown in red.

The ones in the range between 20 and 40 are **24 and 36**.

Want to understand this further and learn how this links to other topics in maths?

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