The ratio of the number of stamps between Chenchen and Li Liang is 3:4, if Li Liang gives Chenchen 9, then their number of stamps is equal, how many stamps do they share?
晨晨和李亮两个人的邮票枚数的比是3：4，如果李亮给晨晨9枚，那么他们的邮票枚数就相等，两人共有邮票多少枚．
<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(4/7) - (1/2)</gadget>
<output>1/14 = around 0.071429</output>

<gadget id="calculator">9 / (1/14)</gadget>
<output>126</output>

<result>126</result>