8 over 24 is not the simplest form. The simplest form is 1/3. However, it is a simplified form of 16/48 or 24/72, for example.
8/24 = 1/3
24/105 = 8/35
24/39 = 8/13
24/15 is 8/5 in its simplest form
8
24 over 99 simplifies to 8/33
8
8
4 and 3/24 in its simplest form is 33/8.
7 over 8
7 over 8