Page 74 - Math Skill - 5

72 Maths

Fraction of a Fraction
To find fraction of a fraction, we just multiply the given fractions.

1 3 1 3 3
Let us find of = × =
2 4 2 4 8

Similarly, 1 of 1 = 1 × 1 = 1
3 12 3 12 36

Let’s Attempt

2 1 1
Example 1: Multiply: 1 × 9 Example 2: Find the product: 2 × 1
3 4 5
3
1
1
3
2
Solution: 1 ×= 5 × 9 = 15 Solution: 2 × 1 = 9 × 6
9
3 3 4 5 4 5
1 27 7 2
1 1 1 = = 2
Example 3: Multiply: 2 × 2 × 3 10 10
4 5 3
3 5 Example 4: 1 of ` 1 = _______
1
Solution: 2 × 1 2 × 1 3 = 9 × 11 × 10 2
4 5 3 4 5 3 Solution: ` 1 = 100 p
2 1 1
311× 33 1 1 1 50
= = = 16 of ` 1 = of 100 p
2 2 2 2 2

4 = 50 p
Example 5: of 18 kg = _______ kg
9

 4 2 
Solution: × 18 kg = 8 kg
 9 


Exercise 5.7

1. Multiply the following.

3
6
(a) 2 × 3 (b) 5 × 26 (c) 2 × 7 (d) 40 × 3 19
4 7 13 14 5 19 7 22
2. Find the product.
1 1 17 1 3 1
(a) 35 6× (b) 11 × 1 (c) 10 × 2 × 1
14 5 28 2 7 4

3. Find the following.

(a) 1 of 27 (b) 2 of 45 (c) 3 of 80 (d) 1 of 100
3 5 8 4