I think I may be missing something ... I don't completely understand your question. All you need to make a fraction is two numbers and a bar. The bar can be either horizontal or slanty. Then you write one number on top and the other number on the bottom, and bada-bing, you have a fraction.
You can make fractions like
2700 / 600 27 / 6 9 / 2 (all 3 of these have the same value)
600 / 2700 6 / 27 2 / 9 (all 3 of these have the same value)
