Hi. I don't know what you have in IND_BIRTH_DT, also, i don't know which one is your date standard format....
So, you can try with:
Age ( Date(Makedate(2014,09,01)), Date(Date#(IND_BIRTH_DT)))
To test this before do reload, select a value in IND_BIRTH_DT and put the above function in a TextBox. It should return the number of years. The most important is the format of IND_BIRTH_DT field. If the last doesn't work, please, go to tables (Ctrl+T), right click on the table that contents this fields, and tell us exactly the format of the values in the field, and if it is right of left arranged.
Also, AGE() will return an integer with the number of years. About the "/12" of your function, i guess you need the number of months. For do that, tell us how much months you need to show between these dates: