Answer:
-9
Explanation:
C + D
-----------
C - D
= 8/11 + 10/11
- - - - - - - - - -
8/11 - 10/11
=18/11
- - - - -
- 2/11
=18/11 x 11/-2
= - 9
The answer is -9
8/11 + 10/11
18/11
-2/11
= -9
3.6m questions
4.6m answers