来自刘湖滨的问题
有理数加减混合运算(+1/2)-(+5)+(-1/3)-(+1/4)+(+5又2/3)(使分母相同或便于通分的加数在一起)
有理数加减混合运算(+1/2)-(+5)+(-1/3)-(+1/4)+(+5又2/3)(使分母相同或便于通分的加数在一起)
1回答
2020-04-05 21:10
有理数加减混合运算(+1/2)-(+5)+(-1/3)-(+1/4)+(+5又2/3)(使分母相同或便于通分的加数在一起)
有理数加减混合运算(+1/2)-(+5)+(-1/3)-(+1/4)+(+5又2/3)(使分母相同或便于通分的加数在一起)
(+1/2)-(+5)+(-1/3)-(+1/4)+(+5又2/3)
=1/2-5-1/3-1/4+17/3
=2/4-1/4-1/3+17/3
=1/4+16/3
=3/12+64/12
=67/12