The price of 6 kg of fruit candy and 4 kg of toffee in the store is the same. If the price of toffee is 12 yuan per kilogram, how much is the price of fruit candy per kilogram?
商店里6千克的水果糖和4千克奶糖的价钱相等，如果奶糖每千克12元，那么水果糖每千克多少元？
<gadget id="calculator">4 / 6</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 * (2/3)</gadget>
<output>8</output>

<result>8</result>