Seventeen Camels and Where They Can Take You

I only looked at the first "puzzle" and then came back here in some kind of frustration. The "solution" includes apportioning 9 camels to the first son, but 9 isn't 1/2 of 17. Maybe I'm pedantic, but if the solution is allowed to approximate or change the aportionment, then that should be specified in the puzzle statement! I felt tricked. Anyone else?

Puzzle 1 as written has an error. "with the remaining one-eighteenth of a camel left for the vultures" should be "with the remaining 17/18th of a camel left for the vultures"

<https://xkcd.com/169/>