Question

find an irrational number between 1/9 and 1/7

Answer 1

1/9& 1/7........ ,
1/9=0.11111111......
1/7=0.142857143.......
irrational no. between them is.... 0.00135622785686425652...........

Answer 2

1/9=0.1111..
1/7=0.1428..
consider the number
a=0.125..
so an irrational number is 0.125. or 1/8