The greatest common factor 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、乙两个数的最大公因数是3，最小公倍数是45，如果甲数是9，那么乙数是多少．
<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>