A certain township planted 15 hectares of forests last year, and this year's forestation is 20% more than last year. How many hectares are planted this year?
某乡去年造林15公顷，今年造林比去年多20%，今年造林多少公顷？
<gadget id="calculator">20 / 100</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">15 * (6/5)</gadget>
<output>18</output>

<result>18</result>