Uncle Wang has a vegetable field, (1/3) is planted with cabbage, (1/5) is planted with green vegetables, and the rest is planted with eggplants. How much is the area for eggplants?
王大伯有一块菜地，(1/3)的部分种了白菜，(1/5)的部分种了青菜，剩下的部分种的是茄子，种茄子的地方占了多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">1 - (8/15)</gadget>
<output>7/15 = around 0.466667</output>

<result>7/15 = around 0.466667</result>