There is a fraction, if the numerator is reduced by 1, then the fraction becomes (1/3), if the denominator is reduced by 1, then the fraction becomes (1/2), then what is the fraction.
有一个分数，如果分子减1，那么这个分数就变为(1/3)，如果分母减1，那么这个分数就变为(1/2)，那么这个分数是多少．
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">4 / 1</gadget>
<output>4</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<gadget id="calculator">12 - 3</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>