If 500 trees are planted and 20 die, what is the survival rate?
植树500棵，死了20棵，成活率是多少
<gadget id="calculator">500 - 20</gadget>
<output>480</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>