3.75-[(-3\8)+(-1\2)-(-5\6)+(+4 2\3)]-0.125 去括号写过程

问题描述:

3.75-[(-3\8)+(-1\2)-(-5\6)+(+4 2\3)]-0.125 去括号写过程

3.75-[(-3/8)+(-1/2)-(-5/6)+(4又2/3)]-0.125
=3.75-(-3/8-1/2+5/6+14/3)-0.125
=15/4+3/8+1/2-5/6-14/3-1/8
=4.5-5.5
=-1