There are (1/5) kinds of tomatoes in a vegetable field, and (1/3) kinds of cucumbers in it. What percentage of the field do tomatoes and cucumbers take up?
一块菜地的(1/5)种西红柿，它的(1/3)种黄瓜，西红柿和黄瓜一共占这块地的几分之几？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">(1/5) + (1/3)</gadget>
<output>8/15 = around 0.533333</output>

<result>8/15 = around 0.533333</result>