On Arbor Day this year, 200 trees were planted, and 198 survived. What is the survival rate of these saplings?
植树节今年种了200棵树，活了198棵，这批树苗的成活率是多少．
<gadget id="calculator">198 / 200</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>