A bit later on Paxti has managed to get 9^6 = 531445 (nb: close enough), and 19/12 = 1.58something. Now she just has to figure out how that all fits together with 8/9, or three 2s and two 3s. She has a number for nineteen 2s and twelve 3s, 19/12 looks like the number of 2s in a 3, there'll be 2*19/12 2s in a 9, so it's 2*19/12 = 19/6. Subtract 3 2s for the 8, and... 19/6 - 3 = 19/6 - 18/6 = ...
Message Keltham: I get that there's exactly 1/6th of a 2 in an 8/9, does that make any sense?