A tree planting group planted 456 trees this year, with a survival rate of 95%. How many trees did this tree planting group plant this year?
一个植树小组今年植树成活了456棵，成活率达到95%，这个植树小组今年植树多少棵？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">456 / (19/20)</gadget>
<output>480</output>

<result>480</result>