How is the inheritance divided among the the father, the husband, the mother, and one daughter?

If a woman dies leaving behind only a mother, father, husband, and daughter, the daughter receives one-half, the mother one-sixth, the father one-sixth, and the husband one-fourth due to the existence of a inheriting offspring. The estate is divided into thirteen shares as a familial matter, so the mother takes two shares, the daughter six shares, the husband three shares, and the father two shares.