Sun Jie did a seed germination experiment. He planted 50 seeds, and after a while, 45 of them germinated. Please do the math, what is Sun Jie's germination rate in this experiment?
孙杰做种子发芽的试验，他种了50粒种子，过了一段时间，有45粒发芽了．请你算算，孙杰这次试验的发芽率是多少？
<gadget id="calculator">45 / 50</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>