Order the numbers from greatest to least - use the number line to help you visualize correct placement:
Biggest number at the top of the list, smallest number at the bottom of the list.
(-0.0123456...),(0),(-49−−√),(15),(7/3),(27−−3√)
From greatest to least:
(-49−−√), (27−−3√), 15, (7/3), (0), (-0.0123456...)