Embed Size (px)
Citation preview
2
What’s ½ of 4?
3
What’s ½ of 4?
4
What’s ½ of 4?
½ of 1
5
What’s ½ of 4?
½ of 2 ½ of 3 ½ of 4
6
What’s ½ of 4?
How many a red? 44/24/2 = 2
7
What’s 1/4 of 2?
8
What’s 1/4 of 2?
9
What’s 1/4 of 2?
How many a red? 22 / 4 bits2 / 4 = ½
10
What’s ½ of 1/3?
11
What’s ½ of 1/3?
12
What’s ½ of 1/3?
This is 1/3
What’s ½ of it?
13
What’s ½ of 1/3?
How big is this?
14
What’s ½ of 1/3?
How big is this?
There are 6 parts, one of which is shaded. Therefore: 1/6
15
What’s ½ of 1/4?
16
What’s ½ of 1/4?
17
What’s ½ of 1/4?
This is 1/4What’s ½ of it?
18
What’s ½ of 1/4?
How big is this?
19
What’s ½ of 1/4?
How big is this?
20
What’s ½ of 1/4?
How big is this?
1/8
21
What’s ¼ of ½?
22
What’s ¼ of ½?
23
What’s ¼ of ½?
This is 1/2What’s ¼ of it?
24
What’s ¼ of ½?
This is 1/2What’s ¼ of it?
25
What’s ¼ of ½?
How big is this?
1/8
26
What’s ¾ of ½?
27
What’s ¾ of ½?
28
What’s ¾ of ½?
This is 1/2What’s ¾ of it?
29
What’s ¾ of ½?
This is 1/2What’s ¾ of it?
30
What’s ¾ of ½?
How big is this?
3/8
31
What’s 2/5 of 1/3?
32
What’s 2/5 of 1/3?
33
What’s 2/5 of 1/3?
This is 1/3What’s 2/5 of it?
34
What’s 2/5 of 1/3?
The1/3 has now been split into 5ths. How many need to be shaded?
35
What’s 2/5 of 1/3?
The1/3 has now been split into 5ths. How many need to be shaded?
36
What’s 2/5 of 1/3?
How big is this?
Lets split the rest of the ‘1’ into 5ths
37
What’s 2/5 of 1/3?
How big is this?
2/15
38
What’s 2/7 of 2/3?
39
What’s 2/7 of 2/3?
40
What’s 2/7 of 2/3?
This is 2/3What’s 2/7 of it?
41
What’s 2/7 of 2/3?
This is still 2/3
What’s 2/7 of it?
42
What’s 2/7 of 2/3?
Lets split this into 7ths
43
What’s 2/7 of 2/3?
44
What’s 2/7 of 2/3?
How many need to be shaded?
45
What’s 2/7 of 2/3?
How big is this?
46
What’s 2/7 of 2/3?
You have to ask, how do you split up the remaining 1/3 into 1/7’s
47
What’s 2/7 of 2/3?
Let’s try:
48
What’s 2/7 of 2/3?
Let’s try:
49
What’s 2/7 of 2/3?
So how many red are shaded?
2/10.5
50
Dividing fractions
51
2 ÷ 1/3
Is asking how many 1/3’s fit inside 2
52
2 ÷ 1/3
This is 1/3, so how many will fit inside 2?
53
2 ÷ 1/3
This is 1/3, so how many will fit inside 2?
54
2 ÷ 1/3
This is 1/3, so how many will fit inside 2?
6i.e: 2 ÷ 1/3 =6
55
2 ÷ 1/4
Is asking how many 1/4’s fit inside 2
56
2 ÷ 1/4
This is 1/4, so how many will fit inside 2?
57
2 ÷ 1/4
This is 1/4, so how many will fit inside 2?
58
2 ÷ 1/4
This is 1/4, so how many will fit inside 2?
8i.e: 2 ÷ 1/4 =8
59
4/5 ÷ 1/5
Is asking how many 1/5’s fit inside 4/5
60
4/5 ÷ 1/5
Is asking how many 1/5’s fit inside 4/5
61
4/5 ÷ 1/5
This is 4/5, how many 1/5’s fit inside
62
4/5 ÷ 1/5
This is 4/5, how many 1/5’s fit inside
4
63
1/2 ÷ 1/3
Is asking how many 1/3’s fit inside 1/2
64
1/2 ÷ 1/3
This is ½, How many 1/3’s fit inside it.
65
1/2 ÷ 1/3
This is 1/3, how many of these fit inside this ½
66
1/2 ÷ 1/3
How many 1/3’s fit inside the ½?
67
1/2 ÷ 1/3
How many 1/3’s fit inside the ½?
68
1/2 ÷ 1/3
How many 1/3’s fit inside the ½?
69
1/2 ÷ 1/3
1 ½ or
3/2
70
1/2 ÷ 1/3 is the same as:
1/2 × 3/1
71
This is the same as 1/2 of 3
72
This is the same as 1/2 of 3
73
This is the same as 1/2 of 3
How many a red? 33/2
