In order to green the city, a group of saplings were planted in a certain street. The survival rate of the saplings was 75% to 80%. If 1,200 saplings were to be planted alive, how many saplings should be planted at least?
为绿化城市，某街道栽一批树苗，树苗的成活率是75%到80%，如果要栽活1200棵，至少要在栽种多少棵树苗？
<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>