Cemerlang Mathematics UPSR
2.FRACTION
2.1 Write the proper fraction in words :
No.
Fractions
Words
1
3
4
2
7
8
3
4
5
6
2
3
4
5
3
7
4
9
7
5
8
8
6
7
9
10
11
12
13
14
15
16
17
18
19
20
1
6
3
8
2
9
1
9
2
5
5
6
3
4
1
8
9
10
3
10
7
10
1
10
45
Cemerlang Mathematics UPSR
2.2 Convert proper fractions to equivalent fractions :
No.
1
2
Proper Fractions
3
4
7
8
3
2
3
4
4
5
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Equivalent Fractions
3
7
4
9
5
8
6
7
1
6
3
8
2
9
1
9
2
5
5
6
3
4
1
8
9
10
3
10
7
10
1
10
46
Cemerlang Mathematics UPSR
2.3 Convert fraction to its simplest form :
No.
Fractions
1
6
8
8
12
4
6
6
10
6
14
6
16
4
10
4
14
4
18
6
21
8
14
8
16
8
18
10
12
10
14
10
16
10
18
12
16
18
45
14
42
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Simplest Form
47
Cemerlang Mathematics UPSR
2.4
a) Convert Improper Fractions to a Mixed Numbers :
No.
Improper Fractions
1
7
2
7
3
14
6
12
7
14
9
22
3
13
3
7
6
5
4
5
3
7
4
13
2
20
7
13
2
12
8
15
9
17
8
10
6
9
7
9
5
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Mixed Numbers
48
Cemerlang Mathematics UPSR
b) Convert Mixed Numbers to Improper Fractions :
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Mixed Numbers
Improper Fractions
1
2
1
2
3
1
4
6
1
2
7
1
5
9
2
5
3
1
1
3
5
3
6
1
7
4
2
1
3
3
6
4
1
9
2
2
1
7
1
4
5
1
7
8
5
2
9
7
5
8
1
7
6
4
1
7
4
4
5
1
49
Cemerlang Mathematics UPSR
2.5
No.
i) Add / Subtract fraction with the different denominator :
(Proper Fraction with Proper Fraction)
Question
1
7 1
+
8 2
2
1 2
+
6 3
3
2
1
+
5
2
4
3 1
+
7 4
5
1 8
+
2 9
6
5 1
+
8 4
7
6
1
+
7
4
8
1 3
+
6 5
9
2
1
+
3
6
10
2
2
+
5
3
11
1 1
2 6
12
1 1
3 6
13
Working Step
1 3
2 8
50
Answer
Cemerlang Mathematics UPSR
No.
Question
14
1 1
4 8
15
5
5
6
9
16
5 1
8 2
17
8 1
9 3
18
1
1
5 10
19
3
1
5
10
20
9
4
10 5
Working Step
Answer
ii) Add / subtract mixed number with Proper Fractions( same denominator) :
No.
Question
1
7 3
5 +
8 8
2
2 2
2 +
3 3
3
2
4
+ 1
5
5
4
3
5
+6
7
7
5
4
8
+4
9
9
Working Step
51
Answer
Cemerlang Mathematics UPSR
6
5 7
6 8 8
7
6
8
5
7
3
8
8
9
2
1 3
4 4
10
4
4
2
5
5
1 3
5 5
iii) Add /subtract mixed number with Proper Fractions(Different denominator):
No.
Question
Working Step
1
7 1
5 +
8 2
2
2
1
2 +
3
4
3
4
1
+ 1
5
3
4
5
1
+6
7
2
5
8
1
+4
9
4
6
5 1
6 8 2
7
6 -
1
5
3
4
52
Answer
Cemerlang Mathematics UPSR
7
1
8
10
8
5
9
2
1 2
4 5
10
4
2
1
5
3
iv) Add / subtract mixed number with mixed numbers (Different denominator) :
No.
1
2
3
4
5
6
7
8
Answer
Question
7
1
5 +4
8
2
2
1
2 + 2
3
4
2
1
3 + 1
5
4
3
1
4 +6
7
3
4
2
5 +4
9
3
5
1
6 +3
8
6
6
1
2 + 8
7
2
4
3
7 +2
5
4
1
2
+ 1
3
5
9
3
10
3
11
3
1
2
– 1
3
5
12
3
1
1
– 2
4
3
1
6
+ 2
4
7
53
Cemerlang Mathematics UPSR
13
2
2
1
– 1
5
4
14
2
15
4
16
17
1
1
– 1
6
3
3
2
– 2
7
3
3
1
– 1
8
7
2
3
5 – 2
9
4
4
2
1
1
– 1
2
4
19
2
1
1
– 1
6
5
20
4
18
3
2
– 2
7
3
54
Cemerlang Mathematics UPSR
2.6)
i) Multiply proper fraction with whole numbers :
Example :
2
=
3
2
of 4812
3
1.
3
of 648
4
3.
5
of 4816
8
1 604
× 4812
= 2 × 1604
= 3 208
3.
3
of 3600
5
4.
1
of 3144
6
5.
2
of 2359
7
6.
2
of 4851
9
7.
7
of 1344
8
8.
2
of 1040
5
55
Cemerlang Mathematics UPSR
ii) Multiply proper fraction with certain value of measurement(Unit conversion)
Example:
2
of 4.5 l
3
1.
3
x 6.7 km
4
3.
5
x 4.8 kg
8
Unit conversion
4.5 l = 4500 ml
2
of 4500 ml
3
2
=
× 4500 ml
3
= 2 × 1500 ml
= 3000 ml
3.
3
x 3.6 m
5
4.
1
x 2.16kg
6
5.
2
x 2.1 l
7
6.
2
9
7.
7
x 2.4 kg
8
8.
2
x 1.04 l
5
x 4.5 km
56
Cemerlang Mathematics UPSR
iii) Dividing fraction by fraction
Exercises
1
1 ÷ 1 =
2
4
6
1 ÷ 2 =
4
5
2
2
2
÷
=
3
7
7
1
1
÷
=
7
5
3
2 ÷ 1 =
5
5
8
2 ÷ 1 =
5
7
4
3
1
÷
=
7
4
9
1
2
÷
=
9
5
5
5 ÷ 1 =
6
3
10
1 ÷ 1 =
6
5
57
Cemerlang Mathematics UPSR
iv) Dividing fraction by whole number
Exercises
1
3
÷ 6 =
4
6
1
÷ 9 =
9
2
1 ÷ 4 =
5
7
3 ÷ 8 =
7
3
3
÷ 20 =
4
8
3
÷ 4 =
8
4
5 ÷ 10 =
6
9
3 ÷ 12 =
4
5
1
÷ 12 =
5
10
3
÷ 6 =
10
58
Cemerlang Mathematics UPSR
2.8)
Problem solving in daily situation :
2
of them
5
are yellow, 16 are black and the rest are
blue. How many marbles are blue?
Contoh
Yap has 50 marbles.
1.
4
of 30 boys wear spectacles. How
5
many of them wear spectacles?
3
× 50
5
= 30 - 16
= 14
=
Blue marbles
2.
3
of 40 pupils in a classroom are
8
boys. How many of them in the classroom
are boys?
4.
3
of 32 pupils go to school by bus.
8
How many pupils go to school by bus?
3.
2
of 42 cars are Kancil. Find the
7
total of Kancil?
5. There are 32 candidates in an
examination.
3
of them had failed. How
8
many of them failed?
59
Cemerlang Mathematics UPSR
6. There are 45 chairs in a hall.
3
of them
8
are plastic chairs. Find the total of plastic
chairs?
8.
2
of 42 cars are Kancil. The rest are
7
Iswara . How many Iswara are there?
10. There are 45 chairs in a hall.
3
of
8
them are plastic chairs. The rest are
wooden chair. What is the number of
wooden chairs?
7.
4
of 30 boys wear spectacles. How
5
many of them are not wearing
spectacles?
9.
There are 32 candidates in an
examination.
3
of of them failed. Find
8
the total of them passed?
11.
3
of 32 pupils go to school by bus
8
while the others walk to school.. How
many of them walk to school?
60