The length of a candle is (5/6) dm, how much is the length of (1/2) dm.
一枝蜡烛长(5/6)dm，(1/2)枝长多少dm．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(5/6) * (1/2)</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>