Question

maths operations of of rational numbers 7th standard answers practice set 22 question number 5​

Answer 1

Answer:

Step-by-step explanation:

Given  

Maths operations of of rational numbers 7th standard answers practice set 22 question number 5

The questions are about division of rational numbers.

1. 40/12 / 10 / 4  

= 40 / 12 x 4/10

= 160 / 120

= 4/3

2. – 10/11 / -11/10

= 10 / 11 x 10 / 11

= 100 / 121

3. -7/8 / -3/6

= -7/8 x -6/3

= 42/24

= 7/4

4. 2/3 / -4

= 2/3 x -1/4

= -2/12

= -1/6

5. 2 1/5 / 5 3/6

We need to convert mixed fraction  

= 11/5 / 33/6

= 11/5 x 6/33

= 11/5 x 2/11

= 2/5

6. -5/13 / 7/26

= -5/13 x 26/7

= -5 x 2/7

= -10 / 7

7. 9/11 / - 8

= 9/11 / -1/8

= -9/88

8. 5 / 2/5

= 5/1 x 5/2

= 25/2