40 kilograms of peanuts can extract 15.6 kilograms of oil. According to this calculation, how many kilograms of oil can be extracted per kilogram of peanuts.
40千克花生可榨油15.6千克，照这样计算，每千克花生可榨油多少千克．
<gadget id="calculator">15.6 / 40</gadget>
<output>0.39</output>

<result>0.39</result>