The actual afforestation in Aba Town last year increased by 1/5 compared with the original plan, and the actual afforestation was 120 hectares more than the original plan. How many hectares were originally planned for afforestation?
阿坝镇去年实际造林比原计划增加(1/5)，实际比原计划多造林120公顷，原计划造林多少公顷？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">120 / (1/5)</gadget>
<output>600</output>

<result>600</result>