The width of the cover of a comic book is (2/10) meters, and the length is (1/10) meters longer than the width. How many meters is the length of the cover of this comic book?
一本连环画封面的宽是(2/10)米，长比宽多(1/10)米，这本连环画封面的长是多少米？
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/5) + (1/10)</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>