Sure. It's just saying that you have to take around 0.17 2s out of a 9 in order to get an 8. 9 × 8/9 = 8. 3.17 2s minus 0.17 2s equals three 2s so an 8. 8/9 just literally means the number you multiply 9 by in order to get 8, so it's the number you multiply by to take 0.17 2s out of the bag.
If it's a probability of something happening 8 times out of 9 it's the same number and will score the same way, according to the scoring rule that counts 2s in things, which is the scoring rule that gives you the same cumulative score whether you assign 1/4 to two events or 1/16 to their product event.