53 I think is the answer.
        
                    
             
        
        
        
Answer:
3rd one
Step-by-step explanation:
 
        
                    
             
        
        
        
There's two ways, you can either multiply 11 and 7 to get 77 and then divide by 2, OR, you can divide 11 by 2 and get 5.5 and multiply that by 7, hope this makes sense, if you don't understand just comment and I'll explain it more :)
        
             
        
        
        
Answer:

Step-by-step explanation:
Use  KCF method for fraction division.
- Keep the first fraction.
- Change the division operation to multiplication.
- Flip  the second fraction.

                
 
        
                    
             
        
        
        
<span>cross is my best answer</span>