2000 fruit trees were planted in the orchard this year, and 12 died. What is the survival rate of these fruit trees?
果园今年种了2000棵果树，死了12棵，这批果树的成活率是多少．
<gadget id="calculator">2_000 - 12</gadget>
<output>1_988</output>

<gadget id="calculator">1_988 / 2_000</gadget>
<output>497/500 = around 0.994</output>

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

<gadget id="calculator">(497/500) * 1</gadget>
<output>497/500 = around 0.994</output>

<result>497/500 = around 0.994</result>