How is the inheritance calculated for two heirs: one daughter, one wife, and one full sister?

If the deceased leaves behind only a wife, a daughter, and a full sister, then the wife inherits one-eighth due to the presence of a lineal descendant (the daughter), and the daughter inherits one-half because she is the sole daughter. The remainder goes to the full sister by virtue of her being an asabah (residuary heir) with the daughter. Thus, the estate is divided into eight shares: one share for the wife, four shares for the daughter, and three shares for the full sister.