There is a simple fraction. If 1 is added to the numerator, the value of the fraction is equal to (3/5). If 1 is added to the denominator, the value of the fraction is equal to (1/3). What is the original fraction?
有一个最简分数，如果分子加上1，分数值等于(3/5)，如果分母加上1，则分数值等于(1/3)，原分数是多少．
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(5/3) + 1</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">3 - (5/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(8/3) / (4/3)</gadget>
<output>2</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">10 + 5</gadget>
<output>15</output>

<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<gadget id="calculator">(8/3) / (4/3) / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>