500 soybeans were used for a germination test, and 22 of them did not germinate. Find the germination rate of the batch of seeds.
用500粒大豆作发芽试验，结果有22粒没有发芽．求这批种子的发芽率．
<gadget id="calculator">500 - 22</gadget>
<output>478</output>

<gadget id="calculator">478 / 500</gadget>
<output>239/250 = around 0.956</output>

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

<gadget id="calculator">(239/250) * 1</gadget>
<output>239/250 = around 0.956</output>

<result>239/250 = around 0.956</result>