500 grains of corn are used for a germination test, and 15 grains do not germinate. What is the germination rate?
用500粒玉米做发芽测验，有15粒没有发芽，发芽率是多少？
<gadget id="calculator">500 - 15</gadget>
<output>485</output>

<gadget id="calculator">485 / 500</gadget>
<output>97/100 = around 0.97</output>

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

<gadget id="calculator">(97/100) * 1</gadget>
<output>97/100 = around 0.97</output>

<result>97/100 = around 0.97</result>