Reduce the denominator of a simplest fraction to the original (1/2), expand the numerator to twice the original, the value of this fraction (16/5), what is the simplest fraction.
把一个最简分数的分母缩小到原来的(1/2)，分子扩大到原来的2倍，这个分数的值(16/5)，这个最简分数是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">16 * (1/2)</gadget>
<output>8</output>

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

<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>