If there is (1/9) salt in (3/8) kilograms of salt water, how many kilograms of water are there?
(3/8)千克的盐水中有(1/9)的盐，则水有多少千克．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

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

<gadget id="calculator">1 - (1/9)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">(3/8) * (8/9)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>