If the side length of a square is (3/4) decimeters, what is its perimeter?
一个正方形的边长是(3/4)分米，它的周长是多少分米．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) * 4</gadget>
<output>3</output>

<result>3</result>