The students planted trees. A total of 50 trees were planted, and 49 survived. What is the survival rate?
同学们植树，一共植了50棵树，有49棵成活，成活率是多少．
<gadget id="calculator">49 / 50</gadget>
<output>49/50 = around 0.98</output>

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

<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>

<result>49/50 = around 0.98</result>