total of 99 saplings were planted in the tree planting activity, and all of them survived. What is the survival rate?
植树活动共栽树苗99棵，结果全部成活，成活率是多少．
<gadget id="calculator">99 / 99</gadget>
<output>1</output>

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

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

<result>1</result>