Better example I hope How can I show radians in symbolic format in excel? like 90 degrees would show (Symbol Pi/2) tia sal2

Greets All
I have one column that has the angles in 20 degrees increments up to 720 degrees
Is thier a way for excel to show them in Radian in symbolic format? I've already converted them to radians by
multipling angle*PI()/180 but how do I get it to look it symbolicly?

Example:
180 degrees would look like (symbol Pi)
90 degrees would look like (Symbol Pi/2)

Better Example
I have three columns in Excel

20 degrees --- 0.34906585 Radians --- I would like the next column in excel to compute and show Pi/9
40 degrees --- 0.698131701 Radians --- I would like the next column in excel to compute and show 2Pi/9
60 degrees --- 1.047197551 Radians --- I would like the next column in excel to compute and show Pi/3
etc....

Tia sal2