10 over 12 or 15 over 18.
10 over 18, 15 over 27, etc.
10/12, 15/18
5/6, 10/12
5/6 is equivalent to 10/12 and 15/18
5/6, 10/12, 15/18
They are: 5/9, 10/18 and 20/36
10/12, 15/18, 20/24
10/18, 15/27, and so on and so forth
-10/18, -15/27, -20/36
5/6, 10/12, 20/24
18 over 30 27 over 45 36 over 60