It is already simplified as 11/18
It is already simplified.
109/18 cannot be simplified further.
241/18 cannot be simplified further.
9/18 can be simplified to 1/2
87/18 = 29/6 when simplified
Yes, it can be simplified to 4 over 9.
No.
No.
no
11/18 cannot be simplified - 11 is a prime number !