A tractor can cultivate 4.8 hectares of land in 6 hours. A piece of land is 80 meters long and 50 meters wide. How many hours can it be plowed with this tractor?
一辆拖拉机6小时可耕地4.8公顷，一块长80米，宽50米的地，用这辆拖拉机去耕，几小时能耕完？
<gadget id="calculator">10_000 / 6</gadget>
<output>5_000/3 = around 1_666.666667</output>

<gadget id="calculator">4.8 * (5_000/3)</gadget>
<output>8_000</output>

<gadget id="calculator">50 / 8_000</gadget>
<output>1/160 = around 0.00625</output>

<gadget id="calculator">80 * (1/160)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>