A total of 5000 trees were planted, only 4 did not survive, what is the survival rate?
共植树5000棵，只有4棵没有成活，成活率是多少．
<gadget id="calculator">5_000 - 4</gadget>
<output>4_996</output>

<gadget id="calculator">4_996 / 5_000</gadget>
<output>1_249/1_250 = around 0.9992</output>

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

<gadget id="calculator">(1_249/1_250) * 1</gadget>
<output>1_249/1_250 = around 0.9992</output>

<result>1_249/1_250 = around 0.9992</result>