When planting trees in an experimental primary school, 190 trees survived and 10 died. What is the survival rate?
实验小学植树，成活了190棵，死了10棵，成活率是多少．
<gadget id="calculator">190 + 10</gadget>
<output>200</output>

<gadget id="calculator">190 / 200</gadget>
<output>19/20 = around 0.95</output>

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

<gadget id="calculator">(19/20) * 1</gadget>
<output>19/20 = around 0.95</output>

<result>19/20 = around 0.95</result>