During the Arbor Day planting, 475 trees survived and 25 failed. What is the survival rate?
植树节栽树，成活了475棵，有25棵没活，成活率是多少．
<gadget id="calculator">475 + 25</gadget>
<output>500</output>

<gadget id="calculator">475 / 500</gadget>
<output>19/20 = around 0.95</output>

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

<gadget id="calculator">(19/20) * 1</gadget>
<output>19/20 = around 0.95</output>

<result>19/20 = around 0.95</result>