If the side length of a square is (3/8) decimeters, what is its perimeter?
一个正方形的边长是(3/8)分米，它的周长是多少分米．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(3/8) * 4</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>