column calculation. The number of A is 45, and the number of B is more than that of A (2/9), what is the number of B?
列式计算．甲数是45，乙数比甲数多(2/9)，乙数是多少？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 + (2/9)</gadget>
<output>11/9 = around 1.222222</output>

<gadget id="calculator">45 * (11/9)</gadget>
<output>55</output>

<result>55</result>