Question

rational numbers -18/5 lies between which consecutive integers?

Answer 1

-18/5=-3.6
It is now clear that -3.6 lies between the consecutive integers -4 and -3

Answer 2

We increase and decrease the number and denominator to find this.
Rational number  -20/5 , -19/5, -18/5, -17/5, -16/5 , -15/5 ...
         -4 , -19/5 -18/5 , -17/5  , -16/5, -3
So -4 and -3