Question

(
3. Insert a rational number and an irrational number between the following:
-2/5 and 1/2
​

Answer 1

Step-by-step explanation:

1/2 rational. and -2/5is negative rational no.

Answer 2

Answer:

3 is a rational number between 2.357 and 3.121.

Again, 3.101101110... (a non-terminating and non-recurring decimal) is an irrational number lying between 2.357 and 3.121.