A tractor can cultivate (2/15) hectares of land in (8/5) hours, how many hours does it take to cultivate 1 hectare of land.
一台拖拉机(8/5)小时耕地(2/15)公顷，耕地1公顷需多少小时．
<gadget id="calculator">8 / 5</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(8/5) / (2/15)</gadget>
<output>12</output>

<result>12</result>