Let Xavier's favourite fraction be a/b, Yessie's favourite fraction = b/a and Zorro's favourite fraction = c/d,
c/d x a/b = 12/35 . . . . . . . . (1)
c/d x b/a = 15/7 . . . . . . . . (2)
(1) x (2) = c/d x a/b x c/d x b/a = 12/35 x 15/7
 c^2 / d^2 = 36/49
c^2 = 36
c = 6
d^2 = 49
d = 7
Xaviers favourite fraction = 12/35 / 6/7 = 2/5 
Yessies favourite fraction = 5/2
Zorro favourite fraction = 6/7
        
             
        
        
        
Answer:
Where is the question or problem that you want answered? 
Step-by-step explanation:
I won't be of much help if I do not know what is it that you are asking help for.
 
        
             
        
        
        
Answer:
1
Step-by-step explanation:
I believe the answer is one but I'm not 100% sure 
 
        
             
        
        
        
Since the toss can either be heads or tails and only one of these can land at a time the answer is 13
        
                    
             
        
        
        
 
rise/run 1/4 so it can be