The sixth grade students planted 80 trees in spring, and 10 of them did not survive. What is the survival rate.
六年级同学春季植树80棵，其中有10棵没有成活．成活率是多少．
<gadget id="calculator">80 - 10</gadget>
<output>70</output>

<gadget id="calculator">70 / 80</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">(7/8) * 1</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>