1 kilogram (5/9) weighs the same as how many kilograms (1/9).
1千克的(5/9)与多少千克的(1/9)一样重．
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(5/9) / (1/9)</gadget>
<output>5</output>

<gadget id="calculator">1 * 5</gadget>
<output>5</output>

<result>5</result>