The school shipped a batch of stones, (5/8) tons were used to build flower beds, (1/2) tons were used to build roads, and (5/8) tons are left. How many tons were the original batch of stones?
学校运来一批石子，砌花坛用去(5/8)吨，修路用去(1/2)吨，还剩下(5/8)吨，这批石子原有多少吨？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

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

<gadget id="calculator">(5/8) + (1/2) + (5/8)</gadget>
<output>7/4 = around 1.75</output>

<result>7/4 = around 1.75</result>