For a batch of chemical fertilizers, (1/3) is removed on the first day, and (1/2) is removed on the second day, and the total amount of this batch of fertilizers is ((())/(())).
一批化肥，第一天运走它的(1/3)，第二天运走它的(1/2)，共运走这批化肥的((())/(()))．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) + (1/2)</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>