Two bags of tea leaves, the first bag weighs (1/5) kilograms, the second bag weighs (3/5) kilograms, how many kilograms do the two bags weigh in total?
两包茶叶，第一包重(1/5)千克，第二包重(3/5)千克，两包一共重多少千克？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/5) + (3/5)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>