Question

3.75减[(负八分之三)+(负二分之一)-(负六分之五)+四又三分之二]-0.125

要有过程

Answer 1

3.75-[（-八分之三）+（-二分之一）-（-六分之五）+4又三分之二]-0.125

=3+3/4-[(-3/8)+(-1/2)-(-5/6)+4+2/3]-1/8
=3+3/4-[-3/8-1/2+5/6+4+2/3]-1/8
=3+3/4+3/8+1/2-5/6-4-2/3-1/8
=3-4+3/4+3/8-1/8+1/2-5/6-2/3
=-1+3/4+1/4+1/2-5/6-4/6
=-1+1+1/2-3/2
=1/2-3/2
=-1

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Answer 2

3又3/4 -(-3/8 -1/2+5/6 +4又2/3)-1/8
=3又3/4 +3/8+1/2-5/6-4又2/3-1/8
=3又3/4+3/8-1/8 +1/2-5/6-2/3 -4
=-1