Question

Insert an irrational number between 5/7 and 2/5

Answer 1

5/7=0.71428571
2/5=0.4
an irrational no.=0.50500500050000.........

Answer 2

it's very easy first divide 7 by 5 and 5 by 2 then insert a rational number like between 5 and 2 and 5 upon 7 it will and note that it will be non recurring and it will be non terminating ok thanks