what is 6 minus 1 2/3?

6 = 18 / 3

1 2 / 3 = 1 + 2 / 3 = 3 / 3 + 2 / 3 = 5 / 3

6 - 1 2 / 3 = 18 / 3 - 5 / 3 = 13 / 3 =

12 / 3 + 1 / 3 = 4 1 / 3