What happens if you try the following :
select the range to be copied
put the arrow against the upper border of the selected range it becomes a cross
while holding down your right mouse button you can then move this range to another place on the sheet
when you let the button go, a menu will pop up
click " copy here as values only" and see if that's OK

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Still getting the decimal places that were removed with the conditional formatting
I've been testing this on my PC, when I have time, I'll try some of these variations on the Mac, where the copying and pasting will actually be done, but I don't expect to see any difference from the PC version.