(3/8+1/27)*7+17/29+1/27如何巧算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 01:03:19
(3/8+1/27)*7+17/29+1/27如何巧算(3/8+1/27)*7+17/29+1/27如何巧算(3/8+1/27)*7+17/29+1/27如何巧算=3/8*7+1/27*7+17/29

(3/8+1/27)*7+17/29+1/27如何巧算
(3/8+1/27)*7+17/29+1/27如何巧算

(3/8+1/27)*7+17/29+1/27如何巧算
=3/8*7+1/27*7+17/29+1/27
=21/8+17/29+(7/27+1/27)
=21/8+17/29+8/27
=21971/6264
=3又3179/6264