What is the perimeter of a square whose side length is (1/4) decimeters?
边长为(1/4)分米的正方形的周长是多少分米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 4</gadget>
<output>1</output>

<result>1</result>