Lets say the 3x3 Matrix is 
M =   [1   5   2 ]
         [1   1   7 ]
         [0  -3   7 ]
We apply the Gauss-Jordan elimination method
 (Procedure and result shown in the image below)
 
        
        
        
Answer:
the conjuring is the first thing that I did to the first lady of the WORLD that the WORLD that 
 
        
             
        
        
        
Yes it is 1/8.You don’t multiply the top part of the fraction,just the bottom.
        
             
        
        
        
Exact Form - 5/12
Decimal Form - 0.41666666...