If the numerator of a fraction is enlarged by 3 times and the denominator is reduced by 2 times, 4(1/2) is obtained. What is the original fraction?
一个分数分子扩大3倍，分母缩小2倍后，得到4(1/2)，原来的分数是多少
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>