6dm is 1m ((())/(())), expressed in decimals how much m.
6dm是1m的((())/(()))，用小数表示是多少m．
<gadget id="calculator">1 * 10</gadget>
<output>10</output>

<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>