The school brought a pile of sand. (5/8) tons are used to build the road, (1/6) tons are used to build the wall, and (5/6) tons are left. How many tons more sand is left than the used sand?
学校运来一堆沙子．修路用去(5/8)吨，砌墙用去(1/6)吨，还剩下(5/6)吨，剩下的沙子比用去的沙子多多少吨？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

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

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(5/8) + (1/6)</gadget>
<output>19/24 = around 0.791667</output>

<gadget id="calculator">(5/6) - (19/24)</gadget>
<output>1/24 = around 0.041667</output>

<result>1/24 = around 0.041667</result>