7除不尽15。

7 won't go into 15.

三除不尽十一。

Three will not divide into eleven.

7除15除不尽。

7 into 15 doesn't go.

我们都知道五除以三除不尽。

We all know that five cant be divided by three.

这世上狗太多，潦潦草草地除不尽还春风吹又生。

Too many dogs in this world, in addition to scribble as also the wind again.