Stephen Moye via XeTeX wrote:
I can see 1/4, 1/2 and 3/4 at U+00BC to U+00BE, 1/5 to 4/5 at U+2155 to U+2158, 1/6 at U+2159, and these by just a very quick search using Charmap; are there other fractions that you would want to have included ?[T]he absence of pre-built fractions [...] is an ongoing source of irritation
-- /Philip Taylor/