If 1000 seeds are used for a germination experiment, 30 seeds do not germinate, what is the germination rate?
用1000粒种子做发芽实验，有30粒没有发芽，发芽率是多少．
<gadget id="calculator">1_000 - 30</gadget>
<output>970</output>

<gadget id="calculator">970 / 1_000</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>