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.