To solve \(-\frac{3}{3} \div \frac{3}{3}\), we can first simplify the fractions.
- Simplify \(-\frac{3}{3}\) to -1, since \(-3 \div 3 = -1\).
- Simplify \(\frac{3}{3}\) to 1, since \(3 \div 3 = 1\).
Now, the expression becomes:
\[ -1 \div 1 \]
The final calculation is:
\[ -1 \div 1 = -1 \]
So, \(-\frac{3}{3} \div \frac{3}{3} = -1\).