125 2/3 + (1/81)1/4 - 16 2/3 =

125,6 + (0.012)0.25 - 16.6
123,6 + 0.003 - 16.6
107 + 0.003 = 107,003

377/3 + 1/324 - 40/3
= (108x377)/324 + 1/324 - (108x40)/324
= (40716 + 1 - 4320)/324
= 45037/324
= ~139