How many kilograms is (1/4) of (8/9) kilograms?
(8/9)千克的(1/4)是多少千克．
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(8/9) * (1/4)</gadget>
<output>2/9 = around 0.222222</output>

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