Question

find rational number between

1)-2/5. and 1/2.

2)for national numbers between 1/4 and 1/2​

Answer 1

1) Rational No Between -2/5 and 1/2 :

Let x = -2/5 and y = 1/2 such that x>y

Now, formula :

1/2 (x+y)

$1/2 (x+y)$

So , putting it :

1/2 ( -2/5 + 1/2 )

= 1/2 ( 1/10)

= 1/2 × 1/10

= 1/20

Rational no between -2/5 and 1/2 = 1/20

Answer 2

Answer:

some of your question is here

I can't give your answer full because I came something to do so the remaining question is sorry..