The sum of A and B and the quotient of A divided by B are both equal to (3/4). What is A?
甲乙两数的和及甲数除以乙数的商都等于(3/4)，甲数是多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) + 1</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">(3/4) / (7/4)</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(3/4) * (3/7)</gadget>
<output>9/28 = around 0.321429</output>

<result>9/28 = around 0.321429</result>