The former term of a ratio is reduced to the original (1/3), the latter term is reduced to the original (1/6), the ratio is 2:5, what is the original ratio of this ratio?
一个比的前项缩小到原来的(1/3)，后项缩小到原来的(1/6)，比是2：5，这个比原来的比值是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / (1/3)</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">5 / (1/6)</gadget>
<output>30</output>

<gadget id="calculator">6 / 30</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>