9又7/8x8+8又6/7x7+7又5/6x6+6又4/5x5

来源：学生作业学帮网编辑：学帮网时间：2024/06/27 16:39:40

9又7/8x8+8又6/7x7+7又5/6x6+6又4/5x5
=(9+7/8)x8+(8+6/7)x7+(7+5/6)x6+(6+4/5)x5
=72+7+56+6+42+5+30+4
=200+22
=222