1·Listing 7 combines the two preceding queries, using the ISBN key as the common denominator, to produce a composite result containing book titles, authors, images, prices, and sales ranks.
清单7以isbn键作为公分母组合前面两个查询，以便产生包含图书标题、作者、图像、价格以及销售队伍的复合结果。
2·When working with rational numbers, it helps to perform a bit of numerical legerdemain: namely that of finding a common denominator to make certain operations easier.
在处理有理数时，采取一点数值技巧将会有所帮助：也就是说，找到公分母，使某些操作变得更容易。
3·Knoppix can also be viewed as a "least common denominator" : its purpose is to get the computer running with as little delay or human assistance as possible.
也可以将Knoppix看成是“最小公分母”：它的目的是为了让计算机在尽可能少的延迟或人员辅助的情况下运行。