For a fraction, if 1 is added to the numerator, the fraction value is (1/2), and if 1 is added to the denominator, the fraction value of this fraction is (1/3), what is the fraction.
一个分数，如果分子加上1，这个分数值是(1/2)，如果分母加上1，这个分数的分数值是(1/3)，这个分数是多少．
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>