A rice seed germination test was carried out, and 500 rice seeds were cultivated, 15 of which did not germinate. Find the germination rate of the batch of seeds.
某水稻种子进行发芽试验，培育500粒稻谷种子，有15粒没有发芽．求这批种子的发芽率．
<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>