A rule for how to find a ratio with a denominator of 1 without using a diagram

If you start with a ratio in the form p/q and want a ratio with a denominator of 1, simply divided p by q.

So suppose you are given the ratio 35/10 (so that p = 35, q = 10).

Then divide 35 by 10 which gives 3.5.

So the units ratio is 3.5:1 or (7/2) : 1