No, it can be simplified further.
It is: 104/180 = 26/45
180/360 = 1/2
It is 2/27, which cannot be simplified.
8/27 cannot be simplified further.
11/27 cannot be simplified further.
65%.
It is already simplified.
It is: 3/5 simplified
3/8
It is: 9/5
27/98