The former term of a ratio is (1/2), the ratio is (1/3), and what is the latter term.
一个比的前项是(1/2)，比值是(1/3)，后项是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/2) / (1/3)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>