Answer: -101/18
Step-by-step explanation: I think, I don’t know
 
        
             
        
        
        
The Gcf is finding the greatest numbers the lcm is finding the least factor 
and the are the same because your finding the common number> (means same number)
        
             
        
        
        
13 2/3
Hope this helped :)
        
             
        
        
        
Answer:
391+124=\=551
Step-by-step explanation:
subtract either the 124 or 391 from both sides.
391=427 which means they are not equal. so it has no solution.