(3/4) of the number A is equivalent to the number B. After adding (1/2) to the number B, it is equal to the number A. What is the number B?
甲数的(3/4)相当于乙数，乙数加上(1/2)以后与甲数相等，乙数是多少？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<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">(1/2) / (1/4)</gadget>
<output>2</output>

<gadget id="calculator">2 - (1/2)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>