把下列各数填入相应的大括号内:-13.5,2,0,0.128,-2.236,3.14,+27,-45,-15%,-112,227,2613.
正数集合{2,+27,227,2613,0.128,3.14,…},负数集合{-13.5,-2.236,-45,-15%,-112,…},
整数集合{2,0,+27,…},分数集合{-13.5,0.168,-2.236,3.14,-45,-15%,-112,227,2613,…},
非负整数集合{2,+27,0,…}.
由已知,根据有理数的含义和有理数的组成及含义.故:正数集合{2,+27,227,2613,0.128,3.14…}
负数集合{-13.5,-2.236,-45,-15%,-112,…}
整数集合{2,0,+27…},分数集合{-13.5,0.168,-2.236,3.14,-45,-15%,-112,227,2613,…},
非负整数集合{2,+27,0,…}.
227
有理数的定义:有理数是整数和分数的统称,一切有理数都可以化成分数的形式。