The mass of a bottle of water is (3/5) kg, Xiao Ming drank (1/3). How many kilograms did Xiao Ming drink?
一瓶水的质量是(3/5)kg，小明喝了(1/3)．小明喝了多少千克？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(3/5) * (1/3)</gadget>
<output>1/5 = around 0.2</output>

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