The numerator of a fraction is 4 smaller than the denominator, and (3/5) is obtained after dividing. What is the fraction?
一个分数的分子比分母小4，约分后得到(3/5)，这个分数是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 4</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(12/5) / (2/5)</gadget>
<output>6</output>

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<gadget id="calculator">(12/5) / (2/5) / 10</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>