The sixth grade young pioneers planted some trees, 36 survived and 4 died. What is the survival rate?
六年级少先队员栽了一些树，活了36棵，死亡4棵成活率是多少．
<gadget id="calculator">36 + 4</gadget>
<output>40</output>

<gadget id="calculator">36 / 40</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) * 1</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>