The expression you have is already in its simplest form. However, there is another way to write it. 
m - n/4
This expression is the same as the original, apart from the fact that we wrote the division as a fraction. 
 
        
             
        
        
        
You can just add 
the answer is most likely to be B
hope this help
        
                    
             
        
        
        
Answer:
what is it
Step-by-step explanation:
 
        
             
        
        
        
Answer:
778.688
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Answer:
I have made it in above figure