SSIS Run string as Expression

I have replaced formulas by the respective values, ending up with a large column of this:

8/4
8+4
9*84
48/74
(8+5)/7
(4*150,5)/(8,05/4,08)

I need to handle these strings (WSTR) as a regular expression, ending up with one numeric value.

Originally this was done in VBA with the eval function.