This is in simplest form.
7/11 or 0.636
It is already simplified and in its lowest terms as -51/70
it cannot be simplified because there is no common factor of (5) and (70)
11/39 is simplified.
8/11 is as simplified as it can get.
It is: 91/70 = 13/10 simplified
11/104 cannot be simplified.
70
It is: 18/70 = 9*35
2 over 35
11/18 cannot be simplified - 11 is a prime number !
It is already simplified.