How do I solve (using Python especially; but any other programming language allowed)?

Question

For an output of the sequence 1/2, 3/4, 5/8, 7/16...

Answer 1

Hint:
Let <x> be one, and <y> be 2
For each subsequence, increment <x> by one, and multiply <y> by two. Then divide <x> by <y>

Please tag relevant language, 'switch' doesn't seem to be relevant, 'loop' makes a better relevant candidate, since it is possible to use loop to generate the sequence.

(Edit)
Tags had been adjusted. Thank you 👍