The former term of the ratio is 6, the ratio is (2/3), what is the latter term of the ratio.
比的前项是6，比值是(2/3)，比的后项是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 / (2/3)</gadget>
<output>9</output>

<result>9</result>