12.5 kg of rapeseed can extract 5 kg of oil. How many kilograms of rapeseed are needed to extract 56.5 kilograms of oil?
12.5千克油菜籽可以榨油5千克．要榨56.5千克油，需要油菜籽多少千克？
<gadget id="calculator">12.5 / 5</gadget>
<output>2.5</output>

<gadget id="calculator">56.5 * 2.5</gadget>
<output>141.25</output>

<result>141.25</result>