Uncle Zhang received a batch of watermelons, sold (1/5) of the total on the first day, and sold (1/6) of the total on the second day, what fraction of the total was sold in the two days?
张大伯收了一批西瓜，第一天卖出了总数的(1/5)，第二天卖出了总数的(1/6)，两天共卖出总数的几分之几？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) + (1/6)</gadget>
<output>11/30 = around 0.366667</output>

<result>11/30 = around 0.366667</result>