DELHI PUBLIC SCHOOL, BHILAI (2016-2017)
CLASS III
MATHEMATICS ASSIGNMENT NO. 3
(BASED ON FRACTIONS)
I. Types of Fractions
a) Unit Fraction: A fraction in which the numerator is 1 is called a
1 1 1
unit fraction. E.g. 2, 17, 21
b) Like Fractions: Fractions which have the same denominators are
8
10
7
6
called like fractions. E.g. 13 , 13 and 9 , 9
c) Unlike Fractions: Fractions which have different denominators are
7
3
4
7
9
9
called unlike fractions. E.g. 12 , 14 ; 18 , 12 ; 12 , 18
1. Circle the like fractions:
3
7
4
,
,
,
4
5
6
1
4
3
,
6
,
7
4
2. Pick out two pairs of unlike fractions:
14
8
3
3
4
, 17 ; 17 , 15 ; 15 ,
17
3. Tick the unit fractions:
3
1
4
,
,
,
7
5
9
5
11
,
1
27
2
;
12
,
5
,
16
25
11
1
14
,
9
,
,
4
8
14
1
100
II. Comparison of Like Fractions:
While comparing like fractions, the fractional number that has greater
1
6
numerator is greater. E.g. 5 > 3
<
10
A. Write > or < in the boxes:
1.
2
9
8
9
2.
13
14
7
14
3.
25
37
17
37
10
7
7
4.
19
40
33
40
B. Arrange the following in ascending order:
2
4
1
5
1. 6 , 6 , 6 , 6
2.
1
6
,
10
5
,
10
3
,
10
10
C. Arrange the following in descending order:
1
3
4
2
1. 7 , 7 , 7 , 7
2.
1
2
,
5
5
,
4
5
,
3
5
III. Addition of Like Fractions
While adding like fractions, we add only the numerators, the
denominator remains the same. E.g. 1 + 2 = 1 + 2 =
5
5
5
Add the following fractions:
1.
2
10
2.
5
8
3.
8
12
4.
3
7
3
10
+
+
2
8
+
=
3
12
+
5
7
=
=
=
 ALL THE BEST 
3
5