The survival rate of a kind of sapling is 95% through experiments, how many saplings should be planted at least in order to ensure that 570 trees will live? (Only the column formula does not count)
一种树苗经过实验成活率是95%，为保证种活570棵，至少应种多少棵树苗？(只列式不计算)
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">570 / (19/20)</gadget>
<output>600</output>

<result>600</result>