A tractor can cultivate (2/15) hectares of land in (1/3) hours, how many hours does it take to plow 1 hectare of land.
一台拖拉机(1/3)小时可耕地(2/15)公顷，耕1公顷地要多少小时．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) / (2/15)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>