The school needs to plant a batch of saplings. The survival rate of such saplings is generally 80%. If 1,200 saplings are to be planted, how many should be planted?
学校要栽一批树苗，这种树苗的成活率一般为80%，如果要栽活1200棵树苗，那么应栽多少棵．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1_200 / (4/5)</gadget>
<output>1_500</output>

<result>1_500</result>