A fraction equal to (4/9), the sum of its numerator and denominator is 156, what is the fraction.
一个等于(4/9)的分数，它的分子和分母的和是156，这个分数是多少．
<gadget id="calculator">156 / 13</gadget>
<output>12</output>

<gadget id="calculator">12 * 9</gadget>
<output>108</output>

<gadget id="calculator">4 / 108</gadget>
<output>1/27 = around 0.037037</output>

<gadget id="calculator">12 * (1/27)</gadget>
<output>4/9 = around 0.444444</output>

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