How do you write 3 8ths as a fraction on a pc?

Answer 1

The standard method to write any fraction is to write the numerator followed by a slash (/) followed by the denominator

→ three eights is 3/8

To improve the look, the numerator can be made superscript and the denominator made subscript.

However, Unicode includes three eighths as a character ⅜ which I type using [Alt Gr][<SHIFT>][5] on this Linux box.