Find three rational numbers between `-2\ a n d\ 5`

Explanation

Calulate first average
`(-2+5)/2=3/2`
Again,
`(-2+3/2)/2=-1/4`
and,
`(3/2+5)/2=13/4`
Hence the three rational numbers between -2 and 5 is`-1/4,3/2,13/4`