What is the relationship between molarity and molality of a solution?

what is the relationship between molarity and molality of a solution?

Molarity = no of moles/ volume of solution in litre
Molality = no of moles/ weight of solvent in kg
The relationship between molarity and molality of a solution=
Molarity / molality = no of moles/ volume of solution in litre ÷ no of moles / weight of solvent in kg
=weight of solvent in kg÷volume of solution in litre