/-0.25/+(-3又4/3)-(-0.75)+/0.125/+7/8

来源:学生作业学帮网 编辑:学帮网 时间:2024/07/01 06:58:58

/-0.25/+(-3又4/3)-(-0.75)+/0.125/+7/8

/-0.25/+(-3又4/3)-(-0.75)+/0.125/+7/8
=0.25-3又4/3+0.75+0.125+7/8
=1-4又1/3+1
=-2又1/3

/-0.25/+(-3又3/4)-(-0.75)+/0.125/+7/8
=0.25+(-3又3/4)+0.75+0.125+7/8
=0.25-3.75+0.75+0.125+7/8
=1+1-3.75
=-1.75