(7/10) square decimeter = how many square centimeters.
(7/10)平方分米=多少平方厘米．
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(7/10) * 100</gadget>
<output>70</output>

<result>70</result>