The sum of A and B is 121. (3/4) of A is equal to (5/8) of B. What is the number of A?
甲、乙两数的和为121，甲数的(3/4)等于乙数的(5/8)，甲数应为多少．
<gadget id="calculator">5 + 6</gadget>
<output>11</output>

<gadget id="calculator">5 / 11</gadget>
<output>5/11 = around 0.454545</output>

<gadget id="calculator">121 * (5/11)</gadget>
<output>55</output>

<result>55</result>