递等式计算(28.85-17.5)/1.2+8.5

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/04 02:44:24

递等式计算(28.85-17.5)/1.2+8.5

(28.85-17.5)/1.2+8.5
=11.35/1.2+8.5
=227/24+17/2
=431/24

(28.85-17.5)/1.2+8.5
=21÷1.2+8.5
=17.5+8.5
=26

(28.85-17.5)÷1.2+8.5×
=11.35÷1.2+8.5
=9又11/24+8又1/2
=17又23/24