Answer:
1 1/2
Step-by-step explanation:
2 2/3 - 1 1/6 = ?
The LCD here is 6.  Convert 2 2/3 so that the denominator is 6:
2 2/3 = 2 4/6
Then subtract 1 1/6 from 2 4/6:  We get 1 3/6, or 1 1/2
 
        
             
        
        
        
Well, it depends, there may be multiple common factors, if it's the greatest common factor, then there is only one.  The way to do this is to list all the factors of each number.
So Factors of
18: 1,2,3,6,9,18
27: 1,3,9,27
Common Factors : 1, 3, 9
Greatest Common Factor: 9
 
        
             
        
        
        
Answer:

Step-by-step explanation:

 
        
                    
             
        
        
        
Answer:
-2 =m
Step-by-step explanation:
–15 = 4m – 7
Add 7 to each side
–15+7 = 4m – 7+7
-8 = 4m
Divide each side by 4
-8/4 = 4m/4
-2 =m
 
        
             
        
        
        
Answer:
its the second one
Step-by-step explanation: