7/30 is in its simplest form.
18/7 is in its simplest form.
5/7 and 4/7 are both in their simplest form. If you add them, it becomes 9/7, still in its simplest form.
7/10000
12 over 28 in simplest form is 3 over 7.
If you were to write 7/28 in its simplest form then it would just be 1/4.
44/77 in simplest form is 4/7
4/14 in simplest form = 2/7
21/36 in simplest form is 7/12
55/77 in simplest form is 5/7
It is 1540/1760 = 7/8 in its simplest form