Hi Hina,
We need to find 5 rational numbers between 6/3 and 7/9.
First, lets make their denominators same
6/3 = 6/3 x 3/3 = (6 x 3) / (3 x 3) = 18/9
7/9 = 7/9
So, we need to find 5 rational numbers between 7/9 and 18/9,
They can be
8/9, 9/9, 10/9, 11/9, 12/9
Please look at this method also.