I'm going to assume that you don't simply mean (95/30) to show months and then take the remainder as days, that you want to recognise that one of those months is 30 days and the other two might be 31.
This being the case, this syntax in your load script works and produces two fields, a Difference in Months and a Difference in Days.
You can add this as a preceding load to your table if you like.