Answer:
1/4
Step-by-step explanation:
1st: you need to make a common denominator for 2/3 and 11/12 that would be 12, so you would  keep 11/12 how it is but multiply the numerator and the denominator by 4 to get it to 12. 
You would have ;
8/12+___=11/12
Then just do 11/12-8/12
so that would simplify out to 1/4
 
        
                    
             
        
        
        
The lowest terms for 19/31 would be 1
        
             
        
        
        
Answer:
x>4
Step-by-step explanation:

Sorry if there is any mistakes
 
        
             
        
        
        
Answer:
cjtsitdtiugxjfzursitdpyzot dig totxitzitzitzktzkfzifzifzkfxofzktzkfz
Step-by-step explanation:
urzurzjrzirxitxitxitzitzitxktxjfzufjfzjf?jc?hd;! hd_:]μ\=[¿©]¡\÷[§ir
 
        
             
        
        
        
Answer:
8/9
Step-by-step explanation:
10-2/10-1=8/9
slope=8/9