There is a ratio, its ratio is equal to (2/3), the latter term is 39, what is the former term.
有一个比，它的比值等于(2/3)，后项是39，前项是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">39 * (2/3)</gadget>
<output>26</output>

<result>26</result>