Kindergarten bought some candies, ate some of them (2/5) for the first time, and ate less (1/6) of these candies for the second time than the first time, what fraction of these candies were eaten in total in the two times ?
幼儿园买来一些糖果，第一次吃了它的(2/5)，第二次比第一次少吃了这些糖果的(1/6)，两次一共吃了这些糖果的几分之几？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) - (1/6)</gadget>
<output>7/30 = around 0.233333</output>

<gadget id="calculator">(2/5) + (7/30)</gadget>
<output>19/30 = around 0.633333</output>

<result>19/30 = around 0.633333</result>