Gardeners plant a batch of trees, and the number of dead trees is 1/9. What is the survival rate of this batch of trees?
园林工人种植一批树木、结果死亡的树木占成活的(1/9)，这批树木的成活率是多少？
<gadget id="calculator">9 + 1</gadget>
<output>10</output>

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

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">9 * (1/9)</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>