A bag of table salt is 2 kilograms, (4/5) kilograms are used for the first time, and the remaining (1/2) is used for the second time, how many kilograms are used for the second time?
一包食盐2千克，第一次用去(4/5)千克，第二次用去余下的(1/2)，第二次用去多少千克？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 - (4/5)</gadget>
<output>6/5 = around 1.2</output>

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

<gadget id="calculator">(6/5) * (1/2)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>