maths fractions · year 3 maths week 2 fractions.notebook 35 when comparing fractions with the same...

$: Maths Fractions · Year 3 Maths Week 2 Fractions.notebook 35 When comparing fractions with the same numerator you need to look at the denominator.The smaller the denominator the bigger$
Year 3 Maths Week 2 Fractions.notebook

1

Maths Fractions


2

4X


3

8X


4

30.3.20

L.O. To add fractions with the same denominator


5

How many boxes do we have?

How many boxes are blue?

How many are red?


6

are blue are red

We now add these together

2__4

1__4

2__4

+1__4 =

3__4


7

Use the models to add the fractions:

When adding fractions with the same denominator, we simply need to add the numerators together, the

denominator remains the same.


8

Let's try this one:

James and Izzie share a chocolate bar.

James eats 2__7 of it, Izzie eats 3__7 of the bar

As a fraction how much did James and Izzie eat all together ?

2__7

+ 3__7 = As a fraction

how much of the chocolate bar is left ?


9

Let's try this one:

James and Izzie share a chocolate bar.

James eats 2__7 of it, Izzie eats 3__7 of the bar

As a fraction how much did James and Izzie eat all together ?

2__7

+ 3__7 =

As a fraction how much of the chocolate bar is left ?

57__

=27_


10

We can draw a bar diagram to help us with adding fractions as well.

1__4 +

2__4 = 3__

4


11

How could this bar be used to show ?

The bar needs to be split into 5 equal sections to represent fifths.

2 of the 5 sections need to be coloured in to represent the 2 fifths.

Add to the bar model to show + . 25

35

35

25


12

Have a go at these:

2/4 + 1/4

4/7 + 2/7

3/8 + 4/8


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Have a go at these:

2/4 + 1/4 = 3/4

4/7 + 2/7 = 6/7

3/8 + 4/8 = 7/8


14

Hard Harder


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Have a go


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I agree with Nicola because she has added the numerators together.

Nisha has made the mistake of also adding the denominators.


17


18


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31.3.20

LO: To subtract fractions with the same denominator


20

Circle three fractions from below which, when added together, reach the target number.

Target Number

10


21

Circle three fractions from below which, when added together, reach the target number.

Complete any next steps in your maths book.

Target Number

10


22

Use the model to subtract the fractions:

When subtracting fractions with the same denominator, we simply need to subtract the second numerator from the

first, the denominator always stays the same.

57

27 7

=


23

57

27 7

= 3


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How could this bar be used to show ?

The bar needs to be split into 5 equal sections to represent fifths.

4 of the 5 sections need to be coloured in to represent the 4 fifths.

Subtract from the bar model to show . 45

35

35

45


25

Think of a statement to match the images


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Think of a statement to match the images

There was 4/6 of a pizza and Florence ate 3/6 leaving

1/6 for Mr W


27

¾ ¾ =


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6

8 3

8

7

9

5

9

Have a go...


29

6

8 3

8

7

9

5

9

= 6/8

= 2/9


30

Write the date and LO in your book and then have a go at the following questions then self

mark your answers.

31.3.20

LO: To subtract fractions with the same denominator


31

Hard Hard


32


33


34

1.4.20L.O. To compare fractions


35

When comparing fractions with the same numerator you need to look at the denominator.The smaller the denominator the bigger the fraction.

When comparing fractions with the same denominator you need to look at the numerator. The bigger the numerator, the bigger the fraction.


36

Which diagram is showing the biggest fraction ? Give your answer as a fraction


37

Which diagram is showing the biggest fraction ? Give your answer as a fraction


38

Let's look at some different diagrams

Which fraction is the biggest?

What can you tell me about the denominator and the numerator of all the fractions?

Which is the smallest fraction?

12

14

18

1


39


40


41

False 9/11 is bigger than 6/11


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43

Task: Mathletics comparing fractions 1 and 1a


44

L.O. To find equivalent fractions

2.4.20


45

Some fractions that are written with different numbers have the same value.

In other words, a fraction can be written in many different ways, but have the same value.


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These are all equivalent fractions, even though they all have different numerators and denominators.

They show that the same amount of the bar has been shaded overall.


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These fractions are all equivalent as they have the same value.


48

Which fractions are equivalent to ?3

4


49

Which fractions are equivalent to ?3

4


50

Have a look at this interactive fraction wall.

http://www.visnos.com/demos/fractionwall

http://www.visnos.com/demos/fraction-wall


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Your task: Create your own fraction wall using paper. You will need to fold the paper carefully into the correct amount of parts. Then write the fraction on the paper. Take pictures of the finished wall.


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Two quarters is equivalent to one half .T/F

One eighth is half of one quarter. T/F

Four eighths is equivalent to one half. T/F

Three quarters is equivalent to one half. T/F

Now answer these true/false questions:


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3.4.20

LO: Develop mental maths skills

Task: Please practice your times tables on TT Rockstars and Hit the Button.

A battle of the bands has been set up between 3R and 3W!


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maths fractions · year 3 maths week 2 fractions.notebook 35 when comparing fractions with the same...

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