This module gives support for rational number arithmetic.

此模块提供对有理数算法的支持。

Provides a class that fully-encapsulates rational number operations.

提供的这个类完全封装了理性数字运算。

Literally, it seems possible to say that the existence of rational number is reasonable.

从字面上理解，取名“有理数”可能是说，这类数的存在是合理合法的。

Why collectivity is integral, rational number can form gather, is gather those who there is determinism?

为什么全体整 数， 有理 数可以构成集合，集合不是有确定性的吗？

The minus involves the concept, the number axis, the absolute value, the rational number operation and so on.

负数涉及到从概念到数轴、绝对值、有理数运算等等一系列知识。