Know More About :- Rotational Symmetry Circle Irrational Numbers List 3 / 8 = 0.375 terminating decimal so it is a rational number. 9 / 5 = 1.8 terminating decimal so it is a rational number 0 can be written in fraction form such as 0 / 1. 1 can be written in fraction form such as 1 / 1. 2 can be written in fraction form such as 2 / 1. 22 / 7 = pie's value not exact, so it is rational number.