A certain town planted 30 hectares of forests this year, which is 1/5 more than last year. How many hectares were planted last year?
某镇今年造林30公顷，比去年多(1/5)，去年造林多少公顷？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">30 / (6/5)</gadget>
<output>25</output>

<result>25</result>