Li Ping grinds 600kg of rice at home to produce 450kg of rice. What is the yield rate of his rice?
李平家用600kg稻谷碾出450kg大米．他家稻谷的出米率是多少？
<gadget id="calculator">450 / 600</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(3/4) * 1</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>