5 2/3 can be converted into an improper fraction: 17/3. There are 17 thirds in 5 2/3rds.
17/4 divide by 1/3 = 12.76276 ( thirds ).
12
Neither.
17 1/3 - 5 2/3 = 11 2/3 or eleven and two thirds.
9/3 = 3 17 + 3 = 20
17/3 (17 over 3)
11 thirds
17/3
-17 1/3
13 and two thirds !
It is 17/3.