Rules for adding: if the bases are the same you can add them, and subtracting happens in a fraction
        
                    
             
        
        
        
Answer:
the difference is number 4
 
        
                    
             
        
        
        
Answer:
-4 1/4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
dang thats tough 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
There are 178 more boys in Barlow school as compared to Willow school.
Step-by-step explanation:
We are given the following in the question:
Barlow school:
Total number of students = 873
Number of boys = 

Willow school:
Total number of students = 630 
Number of girls = 

Number of boys = 
Total number of students - total number of girls 

Thus, Barlow school has greater number of boys than Willow school.
Difference between the number of boys = 

Thus, there are 178 more boys in Barlow school as compared to Willow school.