有理数加法运算(-3.5)+(-3/4)+(4/3)+(+7/2)+0.75+(-7/3)怎么解?

问题描述:

有理数加法运算(-3.5)+(-3/4)+(4/3)+(+7/2)+0.75+(-7/3)怎么解?

(-3.5)+(-3/4)+(4/3)+(+7/2)+0.75+(-7/3)
=(-7/2)-3/4+4/3+7/2+3/4-7/3
=(-7/2)+7/2-3/4+3/4+4/3-7/3
=0+0-3/3
=-1