7. 1/4
8. 1/8
9. 1/7
 Estimated
        
             
        
        
        
Step-by-step explanation:
11/12-?=2/3
11/12-2/3=?
11-8/12=?
3/12
=1/4
 
        
                    
             
        
        
        
Answer:
1 and 1/2
Step-by-step explanation:
3 1/4 is equal to 13/4 and 1 3/4 is equal to 7/4. 13/4 - 7/4 is 6/4. 6/4 equalsn is 1 1/2.
 
        
             
        
        
        
Answer:
0, 5/4
Step-by-step explanation:
If  , you get 0=0, which is obviously true.
, you get 0=0, which is obviously true.
As long as K is not 0, you can divide by k and get  which is solved by
 which is solved by 