Fractions Lesson 2

Understanding mixed numbers

and improper fractions

WALT:

• Identify mixed numbers and improper fractions.

• Change mixed numbers to improper fractions and visa versa

• Understand mixed numbers and improper fractions by drawing / modelling

These numbers are called

fractions12 3

15

56

23

47

1222

These numbers are called

Improper fractions3

2 2015

86

73 11

7

12 2

What do you notice about

Improper fractions?3

2 2015

86

73 11

7

12 2

All the improper fractions have the top number

bigger than the bottom number.

32 20

15

86

73 11

7

12 2

That means that these improper fractions are

greater than 1.

32 20

15

86

73 11

7

12 2

That means that these improper fractions are

greater than 1.

32

86

Shout out

Improper fraction or fraction

when you see each number

Ready ?

Shout out

Improper fraction or fraction

when you see each number

23

Shout out

Improper fraction or fraction

when you see each number

24

Shout out

Improper fraction or fraction

when you see each number

82

Shout out

Improper fraction or fraction

when you see each number

25

Shout out

Improper fraction or fraction

when you see each number

49

Shout out

Improper fraction or fraction

when you see each number

11 3

This is called a

mixed number

112

Here are some

mixed numbers

325

146

8

13

49

1 22 5

Shout out what the number is

Improper fraction or

mixed number

improper fraction or mixed number

4

2

improper fraction or mixed number

4

83

improper fraction or mixed number

22

5

improper fraction or mixed number

141

4

So an improper fraction has a bigger number

at the top.

Improper fractions can be written as

mixed numbers.

This number can also be written as

112

32

can you explain why?

112

32

112

32

mixed number

Improper fraction

214

94

mixed number

Improper fraction

Try these with a

friend…..2 23

?3

And this one….

1 34

?4

And this one….

4 12

?2

And this one….

2 45

?5

And this one….

1 68

??

And this one….

5 13

??

here is the link

5 13

16 3

5 x 3 = 15 then add the 1

and you get 16 thirds

here is the link

2 25

12 5

2 x 5= 10 then add the 2

and you get 12 fifths

here is the link

4 56

29 6

4 x 6 = 24 then add the 5

and you get 29 sixths

now try these in you maths book

WALT: to understand link between mixed numbers and improper fractions

33622

3 21342

4 456 62

4

1 3 2 4 7 2

1 2 5 6 3 5

23

23

29

23

23

25

35

14

23

23

25

23

(a) (b) (c) (d) (e) (f)

(g) (h) (i) (j) (k) (l)

(m)

(n) (o) (q)(p) (r)

answers

21 6

83

73

18 4

29 6

26 4

53

11 3

20 9

14 3

23 3

12 5

85

94

17 3

20 3

17 5

17 3

(a) (b) (c) (d) (e) (f)

(g) (h) (i) (j) (k) (l)

(m)

(n) (o) (q)(p) (r)

So an improper fraction can be

written as a mixed number.

End of this lesson, any questions or comments?