to find 4 rationals between 1/5 and 1/6
do L.C.M because we want to make the denominator equal
so 6 and 5L.C.M is 30
so 1/5=1×6/5×6=6/30
1/6=1×5/6×5=5/30
directly multiply them with 5 (by doing so we will find more numbers between the tow numbers)
6/30×5=30/30
5/30×5=25/30
therefore rationals between are 26/30,27/30,2 8/30,29/30
I believe this will help u ;)