5/13 is in its simplest form.
65/13 in simplest form is 13/1
2.6 written as a fraction in simplest form is 13/5
5 and 13/20
13/5 is already in simplest form.
10/26 = 5/13
160% = 13/5
5/14 is in its simplest form.
38/5 is in its simplest form.
2/5 is in its simplest form.
You can write it as -1 5/8, but that's just using a different form to write it. It, as a fraction, is already in simplest form.
160% as a mixed number is 13/5
40/5 = 8/1 or 8 in its simplest form