The school planted a total of 500 trees in March, and 20 of them did not survive. What is the survival rate?
学校三月份共植树500棵，有20棵没有成活，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>