Out of 40 seeds, 6 did not germinate. What is the germination rate of this batch of seeds?
40颗种子中，有6颗未发芽，这批种子的发芽率为多少．
<gadget id="calculator">40 - 6</gadget>
<output>34</output>

<gadget id="calculator">34 / 40</gadget>
<output>17/20 = around 0.85</output>

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

<gadget id="calculator">(17/20) * 1</gadget>
<output>17/20 = around 0.85</output>

<result>17/20 = around 0.85</result>