Some goods, A moved its (1/4), B moved its (2/4), how much of the goods did A and B move?
一些货物，甲搬了它的(1/4)，乙搬了它的(2/4)，甲、乙一共搬了货物的几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/4) + (1/2)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>