A bottle of water weighs (2/3) kilograms, and the bottle weighs (19/48) kilograms after drinking half of the water. How many kilograms does the bottle weigh?
一瓶水连瓶重(2/3)千克，喝了一半水后连瓶重(19/48)千克，瓶重多少千克？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">19 / 48</gadget>
<output>19/48 = around 0.395833</output>

<gadget id="calculator">(2/3) - (19/48)</gadget>
<output>13/48 = around 0.270833</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(13/48) / (1/2)</gadget>
<output>13/24 = around 0.541667</output>

<gadget id="calculator">(2/3) - (13/24)</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>