Xiao Ming asked Xiao Fang: "How many pens do you have?" Xiaofang replied: "(3/4) plus (3/4) of my pen count is equal to my pen count." How many pens does Xiaofang have?
小明问小芳："你有几枝笔"？小芳回答："我的笔数的(3/4)再加上(3/4)，就等于我的笔数"．小芳有多少枝笔．
<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>