Question

find 4 rational numbers between 1/5and1/6

Answer 1

in between 1/5id=2,4
in between 1/6=2,4,6

Answer 2

LCM of 5 and 6 is 30
1/5 = 6/30 and 1/6 is 5/30
multiply both by 100
1/5 = 600/3000 and 1/6 is 500/3000
Pick any 10, for example 601/3000, 602/3000 ....