On Arbor Day, students planted 50 saplings, but 3 died. What is the survival rate?
植树节同学们种了50棵树苗，结果死了3棵，成活率是多少．
<gadget id="calculator">50 - 3</gadget>
<output>47</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>