If 95 trees were planted, 5 failed to survive, and now 5 were replanted and all survived, what is the survival rate of this batch of trees?
种95棵树，没成活5棵，现又补种了5棵全部成活，则这批树的成活率是多少．
<gadget id="calculator">95 - 5</gadget>
<output>90</output>

<gadget id="calculator">90 + 5</gadget>
<output>95</output>

<gadget id="calculator">95 + 5</gadget>
<output>100</output>

<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

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

<gadget id="calculator">(19/20) * 1</gadget>
<output>19/20 = around 0.95</output>

<result>19/20 = around 0.95</result>