The school planted trees in spring. 480 trees survived and 20 died. What is the survival rate?
学校春季植树，活了480棵，死了20棵，成活率是多少．
<gadget id="calculator">480 + 20</gadget>
<output>500</output>

<gadget id="calculator">480 / 500</gadget>
<output>24/25 = around 0.96</output>

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

<gadget id="calculator">(24/25) * 1</gadget>
<output>24/25 = around 0.96</output>

<result>24/25 = around 0.96</result>