In the following questions Pick the odd thing out.
following each of the questions follows a definite pattern. observe the same and fill in the blanks with suitable ones.
$$66 \frac{2}{3}, 75, 80, 83\frac{1}{3}, 85\frac{5}{7}$$, __________
(5, 7, 6); (9, 11, 10); (13, 15, 14); (17, 19, 18); ________