Answer:
88/57
Step-by-step explanation:
 
        
                    
             
        
        
        
Aloha, thanks for using Brainly.
Step-by-step explanation:
For 1. 7/8 is 90 percent so .90
For 2+. Add the bottom together, whatever you get divide top by bottom.
The others you just divide them by each other.
 
        
             
        
        
        
I think it would be 4. 
8 breaks down to 4(2) and 12 breaks down to 4(3). Let me know if that helps!