5 divided by 86 is ~0.0581395348837
9.5556
5/43 divided by 25/86 is the same as 5/43 times 86/25. So that's (5 X 86)/(43 X 25) = 430/1,075
0.1047
17.2
Oh, dude, it's like you're asking me to do math or something. So, like, the variable expression for 5 divided by r would be 5/r. That's it. Simple math, nothing to stress about.
9.5556
12.2857
21.5
86
0.9149
14.3333