Page 78 - Math Skill - 4

76 Maths

2. Put the correct symbol > or < in the following.

3 3 8 4 7 7
(a) 7 5 (b) 11 11 (c) 8 13

(d) 2 2 (e) 7 7 (f) 10 10
7 9 11 15 25 23

3. Arrange the following fractions in descending order.

(a) 2 , 2 , 2 , 2 (b) 1 , 1 , 1 , 1 (c) 8 , 8 , 8 , 8
9 11 5 7 5 9 12 3 9 11 15 13

4. Arrange the following fractions in ascending order.

(a) 1 , 1 , 1 , 1 (b) 6 , 6 , 6 , 6 (c) 4 , 4 , 4 , 4
9 6 3 12 7 9 13 17 5 10 15 18

Addition of Like Fractions

Let us understand the addition of like fractions by doing an activity.

Represent 1 on a paper strip.
5

3
Represent on another paper strip.
5

Add the numerators of both the fractions, that is, 1 + 3 = 4 and represent on the strip as shown

here:

Thus, 1 + 3 = 4
5 5 5

Sum of two or more like fractions = Sum of the numerators
Common denominator

Let’s Attempt

2
3
5
Example 1: Add and . Example 3: Find the sum of 1 and 2 3
9 9 7 7
3
Solution: 2 5 25 = 7 Solution: Sum of 1 and 2 3
7
7
9 9 9 9
3
3
Example 2: Find the sum: 2 + 3 + 1 = 1 + 2 = 10 + 17
7
7
7
7
11 11 11
Solution: 2 + 3 + 1 = 23 1++ = 6 = 27 = 3 6
7
7
11 11 11 11 11