Starting from Shima, 3 people take turns riding 2 bicycles to Longhai No. 2 Middle School, which is 6km away. How many kilometers does each person ride on average?
从石码出发3人轮流骑2辆自行车去相距6km的龙海二中，平均每人骑多少km．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 * (2/3)</gadget>
<output>4</output>

<result>4</result>