A fraction, plus the fractional unit of this fraction, the sum is equal to 1, and the difference of the fractional unit minus this fraction is equal to (5/6), what is the fraction.
一个分数，加上这个分数的分数单位，和等于1，减去这个分数的分数单位差等于(5/6)，这个分数是多少．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) / 2</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 - (1/12)</gadget>
<output>11/12 = around 0.916667</output>

<result>11/12 = around 0.916667</result>