Math Primary 4: Fraction
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Transcript of Math Primary 4: Fraction
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Divide in two piece equally
one part of two
In fraction : ½In word : a half
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Divide in three piece equally
one part of three
In fraction :
In word : one third
13
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one part of four
In fraction :
In word : one fourths or
a quarter
14
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two part of four
In fraction :
In word : two fourths
24
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In fraction :
In word : two third
23
In fraction :
In word : two fifths
25
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In fraction :
In word : three fifths
35
In fraction :
In word : two sixths
26
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EQUIVALENT FRACTIONS
1 2
2 4
1 2
2 4
= or 1 2
2 4
=
4
1 2
2 4
=
x 2
x 2
1 2
2 4 =
: 2
: 2
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1 2 = one half
2 4
= two fourths
4 8
= four eighths8
3 6
= three sixths
1 2
2 4
= = 3 6
4 8
=
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1 2
2 4
=
4 8
1 2
=
1 2
2 4
=
x 2
x 2
1 2
4 8
=
x 4
4 8
1 2
=
1 2
3 6
=
1 2
4 8
=
x 4
1 2
3 6 =
: 3
: 3
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2 3
6 9
=
5 25
1 5
=
2 3
6 9
=
x 3
x 2
1 5
5 25=
x 5
5 25
1 5
=
10 30
1 3
=
1 5
5 25=
x 5
10 30
1 3 =
x 10
x 10
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2 8
1 4
=
1 3
5 15
=
2 8
1 4
=
: 2
: 2
5 15
1 3=
: 5
1 3
5 15
=
1 5
4 20
=
5 15
1 3=
: 5
1 5
4 20 =
: 4
: 4
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1 8
5 40
=
1 5
3 15
= 1 5
3 15
=
4 80
1 20
=
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COMPARE AND ORDER FRACTIONS
Which is a greater fraction or1 2
1 3
1 2
1 32 3
is greater than or 1 2
1 3
1 2
1 3>
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Which is a greater fraction or2 8
2 6
2 8
2
is greater than or 2 6
2 8
28
2 6<
2 6
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Which is a greater fraction or2 3
3 5
2 3
10 15
=
x 5
x 5
3 5
9 15
=
x 3
x 310 9 >
x 5 x 310 15
9 15>
2 3
3 5>
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Which is a greater fraction or3 7
2 3
3 7
9 21
=
x 3
x3
2 3
14 21
=
x 7
x 79 14 <x3 x 79
2114 21<
3 7
2 3<
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1 8
2 5<
Which is a greater fraction
2 5
3 7>
5 9
6 8<
3 4
9 12=5 7>
3 7
4 6<
4 12=
1 8
2 5<
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2 3
8 12
=
x 4
x4
1 2
6 12
=
x 6
x 6
Arrange fractions in order beginning from the smallest2 3
1 2
, 3 4
,
3 4
9 12
=
x 3
x 3x4 x 6 x 3
6 12
8 12<
1 2
2 3,
9 12<
3 4,smallest
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Arrange fractions in order beginning from the smallest
8 20
5 20
2 5
1 4, 1
2,
10 20
= 1 4
2 5, 1
2,
20 20 20
24 40
10 40
3 5
1 4, 5
8,
25 40
= 1 4
3 5, 5
8,
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Arrange fractions in order beginning from the greatest
48 60
20 60
4 5
2 6, 3
10,
18 60
= 4 5
2 6, 3
10,
60 60 60
18 24
6 24
3 4
2 8, 5
6,
20 24
= 5 6
3 4, 2
8,
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Improper Fraction and Mixed Number
1 2
2 2
1 =
2 2
1 2
+ 3 2
= Improper fraction
Mixed number1 2
+ 1 2
=1 1or,
3 2
1 2
=1
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2 3
3 3
3 3
+ 6 3
= = 2
6 3
2 3
+ 8 3
= Improper fraction
Mixed number2 3
+ 2 3
=2 2or,
8 3
2 3
=2
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12 3 15
12 4
3 = 3 4
12 4
3 4
+ 15 4
= Improper fraction
Mixed number3 4
+ 3 4
=3 3or,
15 4
3 4
=3
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5 2
= 1 22
10 3
= 1 33
15 7
= 1 72
13 6
=1 62
35 8
=3 84
44 5
=4 587
=72
23 4
= 3 45
32 9
= 5 93
5=
58
14 12
=2 121
71 10
=1 107