A county afforested 240 hectares last year and 400 hectares this year. What fraction of last year's afforestation area was this year's?
某县去年造林240公顷，今年造林400公顷．去年的造林面积是今年的几分之几？
<gadget id="calculator">240 / 400</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>