Question

find the two rational numbers between 0.1 and 0.3

Answer 1

0.1= 0.1 x 10
     =1
0.3=0.3 x 10
    =3
therefore, the numbers between 0.1 and 0.3 are 1,2 

this is one of the 2 methods and the easy one
hope this helps

Answer 2

0.1 = 0.1/1 = 1/10 0.3 = 0.3/1 = 3/10 so, the number between 0.1 and 0.3 is 2/10