The farmer’s orchard uses (3/7) of the land to grow tomatoes, and (2/7) of the land to grow eggplants. What percentage of the orchard’s planting area are tomatoes and eggplants?
农夫果园用(3/7)的土地种植西红柿，(2/7)的土地种茄子，西红柿和茄子一共占这个果园种植面积的几分之几？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(3/7) + (2/7)</gadget>
<output>5/7 = around 0.714286</output>

<result>5/7 = around 0.714286</result>