How To Convert Minutes To Decimals

https://community.tableau.com/s/question/0D54T00000C6i6B/how-do-i-convert-minutes-with-decimals-into-hhmmss

Hello, I am trying to convert a column of minutes (E.G. 345.94 minutes) into hours, minutes and seconds (HH:MM:SS). I've attempted to do this by creating a calculated field of MINUTES*60 to convert the data into seconds and then use the default properties > number format > custom > HH:MM:SS but the output is incorrect.

https://coolconversion.com/time/hours-to-decimal/4-minutes-as-a-decimal%7C0%7C4%7C0

To convert this value to decimal hours follow the steps below: Divide the value in minutes by 60 (i.e. 15/60 = 0.25). Divide the seconds by 3600 (i.e. 36/3600 = 0.01). Sum the two values above to get the fractional part (i.e. 0.25 + 0.01 = 0.26). The final result will be 1 + 0.26 = 1.26 hours in decimal. In short: Decimal hours = whole number