Here are all 36 possible rolls with 2 dice and the
ones that are greater than or equal to 9 are colored
red :

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6) 

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6) 

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)


Count the red ones, there are 10.  So the probability
is 10 times out of 36 you'll get one of those colored red.

That's 10/36 which reduces to 5/18.

Edwin