You haven't gone wrong, those are equal in F_61.

    226 / 9
  = (226*34) / (9*34)
  = 7684 / 306
  = 7684 / 1            (since 306 = 1 mod 61)
  = 59 / 1              (since 7684 = 59 mod 61)

I think y3=2888/7 is a typo for 2888/27, which also equals 55 by a similar calculation (1/27 = 52 mod 61).