If you have a font that provides Unicode "number forms", such as Arial
Unicode MS, then there's a character for 1/5 at character code 8205 (hex
2155) However, I don't think you will find a Unicode symbol for 2/10
There are a couple of things you can do, but I think the simplest is
probably as follows, again assuming you have Arial Unicode MS or another
font that supports the necessary symbols
Type the digit 2, select it, and format it as Arial Unicode MS.
Click Insert|Symbol, select font Arial Unicode MS, select Subset General
Punctuation, then select the "FRACTION SLASH" character (Unicode hex 2044)
and insert it.
Type 10 and ensure it is also formatted as Arial Unicode MS.
You should now have 2/10
Select the "2", and use Format|Font to set its size to 6pt, and
Format|Font|Character Position|Raised by 4pt. You may find it looks better
formatted as Bold as well.
Select the "10" and use Format|Font to set its size to 6pt, and perhaps
format as Bold.
This should look pretty much like the 1/5 symbol at 12pt.
To reuse your 2/10, select it and use Insert|Autotext to create an autotext
that you can easily re-insert.
If you need to have a 2/10 at a different point size, make a new copy and
modify the character sizes and subscripting until it works OK.
Peter Jamieson