The former term of a ratio is 6, and the latter term is 9. What is the ratio of this ratio?
一个比的前项是6，后项是9，这个比的比值是多少．
<gadget id="calculator">6 / 9</gadget>
<output>2/3 = around 0.666667</output>

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