The oil mill extracts 65 kg of soybean oil from 500 kg of soybeans. What is the formula for calculating the oil yield of soybeans?
榨油厂用500千克大豆榨出豆油65千克，求大豆出油率的算式是多少
<gadget id="calculator">65 / 500</gadget>
<output>13/100 = around 0.13</output>

<result>13/100 = around 0.13</result>