For a wire, (9/10) meters are used, which is (1/6) more meters than the rest. How long is this wire originally?
一根电线，用去(9/10)米，比剩下的多(1/6)米．这根电线原长多少米？
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) - (1/6)</gadget>
<output>11/15 = around 0.733333</output>

<gadget id="calculator">(11/15) + (9/10)</gadget>
<output>49/30 = around 1.633333</output>

<result>49/30 = around 1.633333</result>