In an experiment, 90 seeds germinated and 10 did not germinate. What is the germination rate of the seeds?
在一次实验中，有90粒种子发芽，有10粒没发芽，种子的发芽率是多少．
<gadget id="calculator">10 + 90</gadget>
<output>100</output>

<gadget id="calculator">90 / 100</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>