It will take 10 days for team A to transport a batch of goods alone, and 15 days for team B to transport alone. The two teams will jointly transport the goods in 2 days (fill in the score).
运一批货物，甲队单独运要10天完成，乙队单独运要15天完成，两队合运2天共运这批货物的多少(填分数)．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/10) + (1/15)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) * 2</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>