For a fraction, the numerator is 18 less than the denominator, and the fraction is (1/7). What is the original fraction?
一个分数，分子比分母少18，约分后是(1/7)，原来这个分数是多少．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>