What is the share of the surviving full siblings, the deceased's wife, and the deceased's son's daughters—whose father died before him—from the inheritance?

If a man dies leaving behind three granddaughters from a son, a wife, and two full brothers, his estate is divided as follows: the granddaughters receive two-thirds, the wife receives one-eighth due to the presence of a lineal descendant, and the remainder goes to the two full brothers. The base number for the division (original issue) is 24 shares. The share of each heir is calculated by multiplying the total inheritance by the heir's shares and dividing the result by the base number of the issue.