Question

find four rational no. between 1/10 and 7/10

Answer 1

1/10=0.1
7/10=0.7
four rational numbers between the two given numbers are 0.2, 0.3, 0.4, 0.5

Answer 2

1/10=1/10*10/10=10/100
7/10=7/10*10/10=70/100
therefore four rational no. between 1/10 and 7/10 are 20/100,30/100,40/100and 50/100
or
four rational no. between 1/10 and 7/10 are 2/10 ,3/10,4/10 and 5/10
hope it was helpful