The school shipped (2/5) tons of cement, and the yellow sand shipped was (5/8) more than (1/8) tons of cement. How many tons of yellow sand were shipped?
学校运来(2/5)吨水泥，运来的黄沙是水泥的(5/8)还多(1/8)吨，运来黄沙多少吨？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(2/5) * (5/8)</gadget>
<output>1/4 = around 0.25</output>

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

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

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