Huh, what wife?

I'm talking about if a man dies, and his inheritance is going to be distributed to his children. His son's receive a larger amount that his daughters, in those proportions that I quoted from the Quran.

Allah chargeth you concerning (the provision for) your children: to the male the equivalent of the portion of two females, and if there be women more than two, then theirs is two-thirds of the inheritance, and if there be one (only) then the half. And to of his parents a sixth of the inheritance, if he have a son; and if he have no son and his parents are his heirs, then to his mother appertaineth the third; and if he have brethren, then to his mother appertaineth the sixth, after any legacy he may have bequeathed, or debt (hath been paid)

Quran Chapter 4, Verse 11