Sixth graders planted 500 trees on Arbor Day, but 20 of them did not survive. Find the survival rate.
植树节六年级同学共植树500棵，有20棵没有成活，求成活率．
<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>