A pile of sand is transported separately, A takes 8 days, and B takes 10 days. Now, after a few days of joint transportation of the two teams, is there still (1/4) of this pile of sand? What is the correct column
一堆沙单独运，甲要8天，乙要10天，现在两队合运几天后，还剩这堆沙的(1/4)？正确列式为多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/8) + (1/10)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">(3/4) / (9/40)</gadget>
<output>10/3 = around 3.333333</output>

<result>10/3 = around 3.333333</result>