Given that the difference and quotient of two numbers A and B are both equal to 9, what is the sum of the two numbers?
已知甲、乙两个数的差与商都等于9，那么两数的和是多少？
<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">9 / 8</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">(9/8) * 9</gadget>
<output>81/8 = around 10.125</output>

<gadget id="calculator">(9/8) + (81/8)</gadget>
<output>45/4 = around 11.25</output>

<result>45/4 = around 11.25</result>