Li Village planted (5/9) hectares of trees last year, and this year's tree planting area has increased by (1/5) compared with last year. How many hectares will the tree planting area be this year?
李村去年植树(5/9)公顷，今年植树面积比去年增加了(1/5)．今年的植树面积是多少公顷？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<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">(5/9) * (6/5)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>