How to get No of months and No of Days from two selected values of User responce?

Hi Exports,

I have a from---To--- prompt in  Bex Query.

I am getting both, 'From' and 'To' value in User response in below given format

8/27/2015 12:30:00;9/25/2016

I required No of Months between the above dates

Same way I required no of days between above dates.

Can anybody suggest a solution ?