The uncle of the garden planted some saplings on the river bank. As a result, 20 saplings survived and 5 saplings died. What is the survival rate of this batch of saplings?
园林叔叔在河岸上种了一些树苗，结果有20棵种活，有5棵树苗死掉，这批树苗的成活率是多少？
<gadget id="calculator">20 + 5</gadget>
<output>25</output>

<gadget id="calculator">20 / 25</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * 1</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>