Answer :

0.68 stays the same as a decimal
7% as a decimal= 0.07
1/3 as a decimal= 0.33
least 7%, 1/3, 0.68 greatest                   Conversion is key when ordering
                                                     numbers, fractions, percentages like this.
Hope this helped   :)
7% = 0.07
1/3 = 0.3333333.. or 0.33
0.68 = 0.68
and 0.07< 0.33< 0.68
So the answer is 7%, 1/3, 0.68