Convert numbers to minutes

If you have a series of values like this:

12.5
9.3
10.7

and want to convert this numbers to a minutes/seconds format you can use this formula:

=A1/(24*60)

This assumes that the values below are on cells A1:A3 and this formula is placed on cell B1 and copied down. You need to format the cells B1:B3 as Custom mm:ss to see this:

12:30
09:18
10:42