In the following questions pick the odd thing out :
Each of the questions follows definite pattern. Observe the same and fill in the blanks with suitable answers.
$$\frac{1}{5}, \frac{5}{10}, \frac{10}{17}, \frac{17}{26}, ..........., \frac{37}{50}$$
$$\frac{1}{2}, \frac{8}{5}, \frac{27}{10}, ...... \frac{125}{26}, \frac{37}{50}$$