2/3 :4/6

To compare the ratios 2/3 and 4/6, it's helpful to express them with a common denominator or compare their simplified forms.

First, simplify 4/6: \[ 4/6 = \frac{2 \times 2}{2 \times 3} = \frac{2}{3} \]

So, both ratios are equal: \[ \frac{2}{3} : \frac{4}{6} = \frac{2}{3} : \frac{2}{3} \]

This simplifies to a ratio of: \[ 1 : 1 \]

Answer: The ratios 2/3 and 4/6 are equivalent, and their ratio simplifies to 1:1.