A tortoise climbed (9/10) meters in 5 minutes, how many meters per minute on average.
一只乌龟5分钟爬了(9/10)米，平均每分钟爬了多少米．
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">(9/10) / 5</gadget>
<output>9/50 = around 0.18</output>

<result>9/50 = around 0.18</result>