The supermarket has (7/8) tons of food, sells (3/5) tons, and buys (5/6) tons. How many tons of food does the supermarket have in total now?
超市有食品(7/8)吨，卖出(3/5)吨，又进货(5/6)吨．现在该超市一共有食品多少吨？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(7/8) - (3/5)</gadget>
<output>11/40 = around 0.275</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(11/40) + (5/6)</gadget>
<output>133/120 = around 1.108333</output>

<result>133/120 = around 1.108333</result>