Huanhuan and Lele are fans of philately. Huanhuan gives out (1/4) of her own stamps to Lele, and Lele gives (1/4) of her current stamps to Huanhuan. The number of sheets is equal. It turned out that the number of stamps that Huanhuan had was a fraction of that of Lele?
欢欢和乐乐是集邮迷，欢欢拿出自己邮票数的(1/4)给乐乐，乐乐再拿出现有邮票数的(1/4)给欢欢，这时两人的邮票张数相等．原来欢欢的邮票张数是乐乐的几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<gadget id="calculator">120 - 30</gadget>
<output>90</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">120 / (3/4)</gadget>
<output>160</output>

<gadget id="calculator">90 / (3/4)</gadget>
<output>120</output>

<gadget id="calculator">160 - 30</gadget>
<output>130</output>

<gadget id="calculator">90 / (3/4) / 130</gadget>
<output>12/13 = around 0.923077</output>

<result>12/13 = around 0.923077</result>