The 1954 Statelessness Status Convention provided a definition of a stateless person (which has since become part of customary international law, according to the International Law Commission), and sets out a number of rights that stateless persons should enjoy.
The ratio of two integers P and Q can be expressed as P : Q or P/Q. In both cases, you may divided P and Q by their greatest common factor so as to express the ratio in its simplest form.
Because of the ratio of 2 to 3. 2 is two thirds of 3. And on the number line, that fraction is two thirds of 1. To place on the number line, we must cut the length representing 1 into thirds, that is, into three equal parts.