Answer: 35 2/5
This is the same as 35 & 2/5
Step-by-step explanation
The mixed number 6 1/5, aka 6 & 1/5, converts to the decimal 6.2 which is exact and hasn't been rounded.
11 1/2 aka 11 & 1/2 converts to 11.5 (also exact and hasn't been rounded).
perimeter of rectangle = 2*(length + width)
P = 2(L+W)
P = 2*(6.2 + 11.5)
P = 35.4
This converts to the mixed number 35 & 2/5 aka 35 2/5
We have 35 full inches and then an additional 2/5 of an inch.