How is the inheritance distributed among the heirs of a deceased woman, whose only son died before her, and they are: (2 grandsons from a son), (2 full brothers), (3 daughters), (2 granddaughters from a son), and (1 full sister)?

Her son who died before her does not inherit from her estate. If the deceased left only those mentioned, then her daughters receive two-thirds, and the remainder goes to the sons of the son and the daughters of the son by ta’sib (residuary inheritance), with the male receiving the share of two females. The full brother and full sister receive nothing due to the presence of the son of the son. The estate is divided into eighteen shares: the daughters receive twelve shares (four for each), each son of the son receives two shares, and each daughter of the son receives one share.