Question

8. Find the common factor: a)20 and 28 b) 4, 8 and 12
9. find the HCF:18, 48
10. Make a factor tree 60​

Answer 1

Answer:

Common factor of

(a) 2,2

(b) 2,2

HCF of 18, 48 = 2 * 3 = 6

Factor of 60 = 2*2*3*5

Hope it will help u...

Answer 2

Answer:

3. Factor Tree of 60

Explanation:

1. (a) 20= 2*2*5

28=2*2*7

so common factor are 2*2

(b) 4= 2*2

8= 2*2*2

12= 2*2*3

so common factor are 2*2

2. HCF of 18,48

prime factorisation= 18= 2*3*3

48= 2*2*2*2*3

so HCF is 2*3= 6