When 45 minutes = ((())/(())), (3/8) square meters = how many square decimeters.
45分=((())/(()))时，(3/8)平方米=多少平方分米．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(3/8) * 100</gadget>
<output>75/2 = around 37.5</output>

<result>75/2 = around 37.5</result>