If the number A is (1/2) of the number B, then how many times the number B is the number A.
若甲数是乙数的(1/2)，则乙数是甲数的多少倍．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / (1/2)</gadget>
<output>2</output>

<result>2</result>