Uncle Zhang planted 2,000 trees after returning farmland to forests last year, and 60 of them died. What is the survival rate?
张大爷去年退耕还林后，植树2000棵，死了60棵，成活率是多少．
<gadget id="calculator">2_000 - 60</gadget>
<output>1_940</output>

<gadget id="calculator">1_940 / 2_000</gadget>
<output>97/100 = around 0.97</output>

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

<gadget id="calculator">(97/100) * 1</gadget>
<output>97/100 = around 0.97</output>

<result>97/100 = around 0.97</result>