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Fractions PowerPoint PPT Presentation


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Fractions. Natasha Duffy Cockenzie Primary School. FRACTIONS. Learning Outcome I can… * explain what a fraction is. * explain what the denominator of a fraction is and find the denominator of a fraction.

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Fractions

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Fractions

Natasha Duffy

Cockenzie Primary School


Fractions l.jpg

FRACTIONS

Learning Outcome

I can…

* explain what a fraction is.

* explain what the denominator of a fraction is and find the denominator of a fraction.

* explain what the numerator of a fraction is and find the numerator of a fraction.

* write a fraction.


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WHAT IS A FRACTION?

  • When an object is divided into a number of equal parts then each part is called a fraction


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2

numerator

denominator

3


Denominator l.jpg

1

2

Denominator

The denominator says how many equal parts in the whole object

2 equal parts


How many equal parts are there in this shape l.jpg

1

How many equal parts are there in this shape?

What is the denominator of this fraction?


Find the denominators of these fractions l.jpg

1

1

1

1

Find the denominators of these fractions


Draw what you think these fractions look like l.jpg

1

6

1

3

1

4

1

10

Draw what you think these fractions look like.


So the number on the bottom of a fraction tells us l.jpg

1

2

So, the number on the bottom of a fraction tells us…

?

(Find a partner and discuss what you think the answer is)


Numerator l.jpg

1

2

numerator

The numerator says how many parts in the fraction

1 part is coloured in


How many equal parts are coloured in in this shape l.jpg

4

How many equal parts are coloured in in this shape?

What is the numerator of this fraction?


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4

3

8

8

Find the numerator for these fractions


Draw what you think these fractions look like13 l.jpg

2

6

1

3

3

4

9

10

Draw what you think these fractions look like.


So the number on the top of a fraction tells us l.jpg

1

2

So, the number on the top of a fraction tells us…

?

(Find a partner and discuss what you think the answer is)


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2

The numerator tells us…

The denominator tells us…

3


Find the fraction of these shapes l.jpg

Find the fraction of these shapes


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