The ratio of a ratio is 2, if the latter term of the ratio is multiplied by 3, and the former term is reduced to the original (1/3), what is the ratio
一个比的比值是2，若比的后项乘3，前项缩小到原来的(1/3)，比值是多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">1 * 3</gadget>
<output>3</output>

<gadget id="calculator">(2/3) / 3</gadget>
<output>2/9 = around 0.222222</output>

<result>2/9 = around 0.222222</result>