The greatest common divisor of two numbers A and B is 3, and the least common multiple is 45. If the number A is 9, what is the number B:
甲、乙两数的最大公约数是3，最小公倍数是45，若甲数为9，则乙数是多少：
<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">45 * (1/3)</gadget>
<output>15</output>

<result>15</result>