How to add html entities to Textboxes for fractions

I have seen posts on here asking how to create fractions. The answer is always superscript and subscript.

Instead of using a regular slash for the fraction line I would like to use the html entity ⁄. This gives a better look to the fraction when used with superscript and subscript.

See here: https://s3-us-west-2.amazonaws.com/storyline-questions/fractions.html

Is there away to add this entity into a textbox?