Oh I think 6.
6 sixths make a whole so 3 wholes would be 6 X 3 = 18 18 sixths make 3 wholes
Six. That;s why they are called Sixths, not Eighths or anything else. oh and its one WHOLE not a hole :) sorry :P
Three
1/6+1/6=1/3. So, two sixths make up one third.
Three thirds make up a whole.
there are three thirds in a whole
Two ...
4
6 of them.
Four of them.
Four!