All students in the school planted 400 saplings on the day of Arbor Day, of which 6 withered, and the survival rate was calculated.
全校同学在植树节那天共种400棵树苗，其中有6棵枯萎，求成活率．
<gadget id="calculator">400 - 6</gadget>
<output>394</output>

<gadget id="calculator">394 / 400</gadget>
<output>197/200 = around 0.985</output>

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

<gadget id="calculator">(197/200) * 1</gadget>
<output>197/200 = around 0.985</output>

<result>197/200 = around 0.985</result>