Powrer query M code Combine List of list of numbers

Hi,
having zipped together two numerical lists I would like to combine them,

if they were text it would be ;

Source    =  List.Zip({ {"A", "B", "C"} ,{"D", "E", "F"} }  )

then

List.Transform(  Source, (_)=> Text.Combine( _, "  " ))

but the two lists are number so I first need to convert to text, I've tried Text.From( ,

 = List.Transform( List.Zip( {  ListOne, ListTwo  } ),(_)=> Text.From(_))

What do I need to do to combine each list, I've attached workbook with Power query Text example.


Richard.