This year, a group of trees were planted in the oil field, 47 of which survived, and 3 did not survive. What is the survival rate of this batch of trees?
今年油田植了一批树，成活了47棵，有3棵没有活．求这批树的成活率？
<gadget id="calculator">47 + 3</gadget>
<output>50</output>

<gadget id="calculator">47 / 50</gadget>
<output>47/50 = around 0.94</output>

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

<gadget id="calculator">(47/50) * 1</gadget>
<output>47/50 = around 0.94</output>

<result>47/50 = around 0.94</result>