There is a batch of cement on the construction site. (5/8) tons were used for the first time, and (3/4) tons were used for the second time. They just ran out. How many tons did this batch of cement have?
工地有一批水泥，第一次用去(5/8)吨，第二次用去(3/4)吨，正好用完，这批水泥原有多少吨？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(5/8) + (3/4)</gadget>
<output>11/8 = around 1.375</output>

<result>11/8 = around 1.375</result>