For a batch of goods, (5/6) tons were shipped on the first day, and (2/7) tons were shipped less than on the second day. How many tons were shipped on the second day? (solution by equation)
一批货物，第一天运了(5/6)吨，比第二天少运了(2/7)吨，第二天运了多少吨？(用方程解)
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(5/6) + (2/7)</gadget>
<output>47/42 = around 1.119048</output>

<result>47/42 = around 1.119048</result>