A sixth grader planted trees. 91 trees survived and 9 failed. What is the survival rate?
六年级同学植树，成活91棵，9棵没活，成活率是多少．
<gadget id="calculator">91 + 9</gadget>
<output>100</output>

<gadget id="calculator">91 / 100</gadget>
<output>91/100 = around 0.91</output>

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

<gadget id="calculator">(91/100) * 1</gadget>
<output>91/100 = around 0.91</output>

<result>91/100 = around 0.91</result>