The sixth grade students planted 200 trees on Arbor Day, and 12 of them failed to survive. What is the survival rate of this tree planting?
六年级同学在植树节这天共植树200棵，有12棵未成活，这次植树的成活率是多少．
<gadget id="calculator">200 - 12</gadget>
<output>188</output>

<gadget id="calculator">188 / 200</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>