The oil yield of peanut kernels is 38%, how many kilograms of peanut kernels are needed to extract 570 kilograms of oil.
花生仁的出油率是38%，要榨油570千克，需花生仁多少千克．
<gadget id="calculator">38 / 100</gadget>
<output>19/50 = around 0.38</output>

<gadget id="calculator">570 / (19/50)</gadget>
<output>1_500</output>

<result>1_500</result>