Question

how to find 3 irrational number between 5/7 and 9/11

Answer 1

5/7=0.7142     9/11=0.818181
first we have to change the  the number into decimal or rational
 decimal form of 5/7 is 0.71428571 and the decimal form of 9/11 is 81818181
hence the rational number are between 0.71428571 and 0.81818181

rational numbers between 5/7 and 9/11  
1) 0.72428571
2)0.73428571
3)0.74428571
      .
      . 
      .
      .
upto 0.80818181
you can take any number between them as irrational.

Answer 2

They are 0.7242
0.7342
0.7442 ....

Hope it helps...