[whatwg] Vulgar fractions

?istein E. Andersen:
> Currently, only a limited set of vulgar fractions can be expressed  
> in HTML, viz, those that exist as pre-composed characters in  
> Unicode.  (...)
>
> 1) According to Unicode (...), `any sequence of one or more decimal  
> digits, followed by the fraction slash [U+2044], followed by any  
> sequence of one or more decimal digits ... should be displayed as a  
> unit, such as ?'.

FWIW, JFTR and FYI, Wikipedia has a 'frac' template <http:// 
en.wikipedia.org/wiki/Template:Frac> whose code has changed over  
time, but always used the fraction slash, and may be different in  
other Wikipedias (or Mediawikis).