31/42 is already simplified
It is: 78/126 = 13/21 simplified
126/12 = 21/2 or 10.5
1 over 9
It is: 36/42 = 6/7 simplified
It is: 42/100 = 21/50 simplified
Yes, it can be simplified and the simplest form of 16 over 42 is 8 over 21.
1/2
It is: 9/14
It is 63/126 = 1/2 simplified
It is: 126/162 = 7/9 simplified
42/65 cannot be simplified further.