The oil yield of peanuts is 45%. How many kilograms of peanuts are needed to extract 270kg of peanut oil?
花生的出油率是45%，榨油厂要榨出270kg花生油，需要多少千克花生？
<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">270 / (9/20)</gadget>
<output>600</output>

<result>600</result>