A fraction is divided into (5/6). It is known that the numerator of the original fraction is 3 smaller than the denominator. What is the original fraction?
一个分数约分后是(5/6)，已知它的原分数分子比分母小3，原分数是多少．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(5/6) * 3</gadget>
<output>5/2 = around 2.5</output>

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

<gadget id="calculator">(5/2) / (1/6)</gadget>
<output>15</output>

<gadget id="calculator">15 + 3</gadget>
<output>18</output>

<gadget id="calculator">(5/2) / (1/6) / 18</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>