The students participated in the tree planting activity. A total of 99 trees survived, and 1 tree did not survive. What is the survival rate of planted trees?
同学们参加植树活动，种植的树木中一共成活了99棵，1棵没有成活．种植树木的成活率是多少．
<gadget id="calculator">99 + 1</gadget>
<output>100</output>

<gadget id="calculator">99 / 100</gadget>
<output>99/100 = around 0.99</output>

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

<gadget id="calculator">(99/100) * 1</gadget>
<output>99/100 = around 0.99</output>

<result>99/100 = around 0.99</result>