Xiaoqing asked Xiaohong: "How many people are there in your family?" Xiaohong replied: "(3/4) the number of people in my family plus (3/4) people is equal to the number of people in my family." Xiaohong's family has How many people.
小青问小红："你们家共有几个人呢？"小红答道："我家人数的(3/4)再加上(3/4)个人，就等于我家的人数．"小红家有多少个人．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(3/4) / (1/4)</gadget>
<output>3</output>

<result>3</result>