If 800 kg of rapeseed is used to extract oil, there will be 450 kg of oil, what is the oil yield?
用800千克菜籽榨油，有450千克油，出油率是多少．
<gadget id="calculator">450 / 800</gadget>
<output>9/16 = around 0.5625</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(9/16) * 1</gadget>
<output>9/16 = around 0.5625</output>

<result>9/16 = around 0.5625</result>