Tandrageemaths
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The Highest common factor can be found by writing out the Factors of the numbers and then circling the highest one that appears in both your lists.
Example
Find the highest common factor between 9 and 12
9: 1 3 9
12: 1 2 3 4 6 12
So the answer is 24
Now try these in your books:
Find the highest common factor (HCF) between the following numbers.
|1 |12 & 8 |
|2 |36 & 12 |
|3 |32 & 24 |
|4 |15 & 20 |
|5 |6 & 12 |
|6 |10 & 30 |
|7 |8 & 14 |
|8 |15 & 30 |
|9 |12 & 16 |
|10 |18 & 25 |
We use this information in maths to help us to simplify fractions in order to make them easier to deal with. Write down how you would use this to help you to simplify the fraction below.
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