........................................................................Lol

Answer: 21
Step-by-step explanation: We can use the method: Keep, Change, Flip.
1. Keep 7.
2. Change division to multiplication.
3. Flip [tex]\frac{1}{3}[/tex].
Now we can solve!
[tex]\frac{7\times3}{1\times1} =21/1[/tex]
Therefore, your answer is 21/1 or just 21.