How are the mother's properties and the father's inheritance divided after his death, especially concerning a deceased son and the inheritance of his grandchildren?

The answer states that the inheritance is to be divided according to three possibilities:

1. Estate of the Deceased Son: His two wives receive one-eighth, divided equally between them. His father receives one-sixth (or his mother receives one-sixth if she is his mother and not his stepmother). The remainder goes to his four children, divided equally.

2. Estate of the Stepmother or Mother: Stepmother: If she has no children, her husband receives one-half. If she has children, her husband receives one-fourth. Mother: Her husband receives one-fourth. The remainder goes to her living children, with the male receiving the share of two females.

3. Estate of the Father: His wife receives one-eighth (if she exists). The remainder goes to his living children, with the male receiving the share of two females. If he has no wife, then the entire estate goes to his children, with the male receiving the share of two females. The children of the son who died during his father's lifetime do not inherit from their grandfather or grandmother due to the presence of their uncles. This is by scholarly consensus.