Explanation:
we we have to find four rational number between 1/2 and 6/7.
So, firstly we find LCM ...for make same numerator
= 1×7/2×7 and 6×2/7×2
=7/14 and 12/14
Now,
We can check that.....8/14,9/14,10/14and 11/14 are four rational numbers between 1/2 and 6/7 .