Hi,
The fractions 1/3 and 1/8 are available in most fonts. You can open the
Symbol dialog box and look for them, or do as follows:
For 1/3, type 2153 and then press Alt+X.
For 1/8, type 215b and then press Alt+X.
For 2/3, type 2154 and then press Alt+X.
For 3/8, type 215c and then press Alt+X.
For 5/8, type 215d and then press Alt+X.
For 7/8, type 215e and then press Alt+X.
You can create something very close to fractions like these for any other
fraction in the following manner.
1) Press Shift+Ctrl+=.
2) Type the numerator.
3) Press Ctrl+Spacebar.
4) Type a slash (/).
5) Set the font size to 8 points (or 2/3 of the current font size).
6) Type the denominator.
7) Press Ctrl+Spacebar.