Answer:
![(x+y)/(2)](https://img.qammunity.org/2022/formulas/mathematics/high-school/fvy2ls5u332zbjwfrun42mlkj04tsodshz.png)
Explanation:
Let first number be x and another number is y.
A rational number is a fraction that can be expressed in the form of x/y.
A rational number between x and y is given by :
![R=(x+y)/(2)](https://img.qammunity.org/2022/formulas/mathematics/high-school/uhsjmkkuqrwvrqexr6pm6wyomz663brqsn.png)
So,
If x and y are two rational numbers such that x < y , then
is a rational number in between x and y.