80 over 84 simplified = 20/21
80/231 cannot be simplified.
24/35 cannot be simplified further.
It is: 35/525 = 1/15 simplified
It is: 35/85 = 7/17 simplified
23/80 cannot be simplified further.
It is already a simplified fraction.
No.
No
17/35 is simplified because 17 is a prime number.
No.
92 over 80 is simplified as 23 over 20.