Question

Find a rational number between 1/3 and 2/7

Answer 1

in this case we will use the formula a+b by 2
a=1/3 b=2/7
1/3+2/7 by = 7+6/21/2 = 13/21*2=13/42
13/42 is a rational number between 1/3 and 2/7