Xiaoming, Xiaoying, Xiaolan, and Xiaoqiang all have some extracurricular books. Xiaoming has 6 times as many books as Xiaoying, Xiaoying has 3 times as many books as Xiaolan, and Xiaoqiang has 9 times as many books as Xiaolan. Times. Xiao Ming's books are many times that of Xiao Qiang's.
小明、小英、小兰、小强四位同学都有一些课外书，小明的书本数是小英的6倍，小英的书本数是小兰的3倍，小强的书本数是小兰的9倍．小明的书本数是小强的多少倍．
<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 * (1/3)</gadget>
<output>2</output>

<result>2</result>