Word Options > Proofing > Autocorrect Options > Autoformat As You Type >
second item. However this will only work for those fonts that actually have
the required fraction characters. 1/3 is probably not covered. For those
that aren't there are a couple of possibilities - see:
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.