Three children take turns playing table tennis on a table tennis table. They played for 1 hour, and each child played for an average of minutes?
3个小朋友轮换在一张乒乓球桌上打乒乓球．他们打了1小时，平均每个小朋友打了分钟？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 * (2/3)</gadget>
<output>40</output>

<result>40</result>