How is inheritance divided among three full sisters?

If the deceased leaves no heirs except full sisters, they inherit two-thirds as a prescribed share, based on the Almighty's saying: "But if there are two [sisters], they shall have two-thirds of what he leaves." The remaining one-third is taken by them through radd (return), due to the general statement of the Prophet, peace and blessings be upon him: "And whoever leaves behind wealth, it is for his heirs." Thus, they receive all the wealth, both as a prescribed share and through radd, and it is divided equally among them, with each sister taking one-third.