Let's chat about fractions - they're a big deal in KS3 Maths! Fractions have different ways of being written. For example, ten twentieths can be 10⁄20, but guess what? It's the same as 2⁄4 or 1⁄2. Changing fractions into simpler forms is called simplification.

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What is the biggest number you can divide into both the numerator and denominator of 71/92?

1/9

7/9

7/2

It's not possible

There is no common factor!

2.

What is 30/40 as a fraction in its simplest form?

1/2

3/4

30/40

300/400

The highest common factor of 30 and 40 is 10

3.

What is the simplest way of writing 1/2?

1/4

1/3

1/2

1/5

1/2 is in its simplest form already!

4.

What is the biggest number you can divide into both the numerator and denominator of 30/40?

3

4

10

There isn't one

Dividing 30 (the numerator) and 40 (the denominator) by 10 gives us 3/4

5.

How would you write 12/18 in its simplest form?

1/3

2/3

3/4

5/10

Divide 12 and 18 by 6 to find the answer

6.

How would you write 10/100 in its simplest form?

1/10

1/100

100/10

10/1

The common factor is 10

7.

What is the biggest number you can divide into both the numerator and denominator of 33/66?

3

6

11

33

Although both numbers are divisible by 11, it isn't the HIGHEST common factor

8.

How would you write 9/81 in its lowest terms?

1/9

9/1

9/8

It's not possible

Both numbers are divisible by 9

9.

How would you write 33/66 in its simplest form?

33/66

3/6

1/2

3/4

'Simplest form' is also known as 'lowest terms'

10.

What is the biggest number you can divide into both the numerator and denominator of 12/18?

3

6

9

12

12 and 18 share a few factors - 1, 2, 3, 6 - but 6 is the highest

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