Given the mathematical expression, it appears to involve fractions and the process of simplification. However, there is some ambiguity in the original task. To make it clear, I'll restate it correctly.
Simplify the following expression and determine the equivalent ratio:
[tex]\[ \frac{\frac{3}{3}}{\frac{6}{3}} = 2 \][/tex]
What ratio is equivalent to [tex]\(\frac{4}{6}\)[/tex]?