sweet potatoes are equal to the weight of 4 radishes, and 1 cabbage is equal to the weight of 2 sweet potatoes. If a cabbage weighs 1.6 kg, how much does a radish weigh in kg?
3个红薯等于4个萝卜的重量，1棵白菜等于2个红薯的重量，如果1棵白菜重1.6千克，那么1个萝卜重多少千克．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1.6 * (3/8)</gadget>
<output>0.6</output>

<result>0.6</result>