simple distillation and fractional distillation has same work and process so what is the role of fractionating column in fractional distillation which makes it different from simple distillation

simple distillation and fractional distillation has same work and proc

1.	simple distillation and fractional distillation has same work and process so what is the role of fractionating column in fractional distillation which makes it different from simple distillation
Answer» FRACTIONAL DISTILLATION WORK on BASIS of BOILING of imesible liqued