(1/2) of number A is (1/3) of number B, and number A is ((())/(())) of number B.
甲数的(1/2)是乙数的(1/3)，甲数是乙数的((())/(()))．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) / (1/2)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>