There are 500 seeds in a batch, and 450 seeds germinate. What is the germination rate?
一批种子有500棵，发芽的有450棵，发芽率是多少．
<gadget id="calculator">450 / 500</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) * 1</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>