The greening team planted 400 trees in March, and 8 of them did not survive. What is the survival rate of these trees?
绿化小组三月份共植树400棵，有8棵没有成活，这批树的成活率是多少．
<gadget id="calculator">400 - 8</gadget>
<output>392</output>

<gadget id="calculator">392 / 400</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>