The sum of the numerator and denominator of a number is 48, and its simplest fraction is (5/7), which is ((())/(())).
一个数的分子与分母的和是48，它的最简分数是(5/7)，这个分数是((())/(()))．
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">1 + (5/7)</gadget>
<output>12/7 = around 1.714286</output>

<gadget id="calculator">48 / (12/7)</gadget>
<output>28</output>

<gadget id="calculator">48 - 28</gadget>
<output>20</output>

<gadget id="calculator">20 / 28</gadget>
<output>5/7 = around 0.714286</output>

<result>5/7 = around 0.714286</result>