Let x = 0.308080808.....
10x = 3.08080808....
1000x = 308.080808.....
1000x - 10x = 308.080808... - 3.080808...
990x = 305
x = 305/990 = 61/198
Sorry ...missed that point....was looking at original post and suqsequent post at the same time and saw .308.......
Thanx !