Proc by bylo lomitko spatne? Lomitko je naprosto v poradku. Je to napriklad i v definici SI:
"The International System of Units, the SI, is the system of units in which
... the speed of light in vacuum, c, is 299 792 458 m/s,..."
https://www.bipm.org/en/publications/si-brochure
Mozna to je narazka na problem kdyz je pod lomitkem vice velicin, na to lidi zapominaji. Treba tepelna vodivost je waty na metr-kelvin, tedy W·m−1·K−1. Tady by psat W/mK delalo zmatek, takze bud s -1, nebo se zavorkou W/(mK).