1.2
No. 11 over 13 is bigger.
You don't - 11/13 is already in lowest terms.
11 over 13 is in simplest form because they are both prime numbers and cant be divided by anything.
11/13 is already in its simplest form
It is: 11/13 = 22/26
11/13
89/13 is improper. Therefore, you can reduce it to 6 11/13 (6 and 11 over 13). It cannot be simplified past that.
It is 11/15.
5/13 + 6/11 = = 133/143
11/13 = 0.846153 recurring decimal
77/91 = 11/13
66/78 = 11/13