Some trees were planted in the orchard, 198 survived and 2 failed. What is the survival rate?
果园种了一些树，活了198颗，2颗没活，成活率是多少．
<gadget id="calculator">198 + 2</gadget>
<output>200</output>

<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>