See
http://www.word.mvps.org/FAQs/Formatting/CreateFraction.htm
http://www.gmayor.com/createfraction.htm

--
Regards,
Jay Freedman
Microsoft Word MVP         FAQ: http://word.mvps.org

G'Day Terry,

Most fonts include single characters that represent fractions. The following
single characters appear 'shrunk' only because they take up the space of a
single character:
   ¼    ALT+0188
   ½    ALT+0189
   ¾    ALT+0190.

Word supports other characters that this News Reader application (Outlook
Express) does not  support. Those characters represent the fractions:
 1/3    2153 followed by ALT+X
 2/3    2154 followed by ALT+X
 1/8    215B followed by ALT+X
 3/8    215C followed by ALT+X
 5/8    215D followed by ALT+X
 7/8    215E followed by ALT+X.

These are the ONLY fractions generally available to Word as characters.

To improve on this,see:
http://www.gmayor.com/createfraction.htm (also has the VBA code)
or
http://www.word.mvps.org/FAQs/Formatting/CreateFraction.htm
for the general method.