In spring planting in a certain place, 980 trees survived and 20 died. What is the survival rate of the trees planted in this area?
某地春季植树，活了980棵，死亡20棵，这个地区植树成活率是多少．
<gadget id="calculator">980 + 20</gadget>
<output>1_000</output>

<gadget id="calculator">980 / 1_000</gadget>
<output>49/50 = around 0.98</output>

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

<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>

<result>49/50 = around 0.98</result>