Xiao Wang planted 200 saplings, but 4 died. What is the survival rate of these saplings?
小王种了200棵树苗，结果死了4棵，这批树苗的成活率是多少．
<gadget id="calculator">200 - 4</gadget>
<output>196</output>

<gadget id="calculator">196 / 200</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>