No.
150 over 6 simplified = 25/1
Yes, 150/100 can be simplified down to 3/2.
It can not be simplified further.
13/9 cannot be simplified.
-13/72 cannot be simplified.
It is already simplified.
Yes, it is simplified.
2/3
1/150 is.
It is: 13/52 = 1/4 simplified
13/20 cannot be simplified further.
13/33 can't be simplified any further