【(21/4-4.25)*5/8】/3/8+3.3/11/6

来源:学生作业学帮网 编辑:学帮网 时间:2024/07/04 20:19:33

【(21/4-4.25)*5/8】/3/8+3.3/11/6

【(21/4-4.25)*5/8】/3/8+3.3/11/6
=【1*5/8】/3/8+3.3*6/11
=5/8*8/3+3.3*6/11
=5/3+9/5
=52/15

原式=5/3+9/5
=52/15