0.5 recurring as a fraction
Thanks Mellie, you didn't see the recurring bit :)
10*0.5555555....= 5.5555555....
1*0.5555555.. =0.5555555...
subtract
9* 0.5555555... = 5.0000000...
9* 0.5555555... = 5
0.5555555... = 5/9
1/2? Not sure if this was what you were looking for.