One side of an equilateral triangle is (2/9) meters long, what is its perimeter in meters?
一个等边三角形的一条边长(2/9)米，它的周长是多少米？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(2/9) * 3</gadget>
<output>2/3 = around 0.666667</output>

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