A watermelon, mother ate its part (1/8), Ding Ding ate its part (2/8), how much of this watermelon did they eat? How many
一个西瓜，妈妈吃了它的(1/8)，丁丁吃了它的(2/8)，他们一共吃了这个西瓜的几分之几？多少
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/8) + (1/4)</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>