80 seeds were tested for germination, and 16 seeds did not germinate. What is the germination rate?
80粒的种子做发芽试验，有16粒没有发芽，发芽率是多少．
<gadget id="calculator">80 - 16</gadget>
<output>64</output>

<gadget id="calculator">64 / 80</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * 1</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>