第1个回答 2017-01-19
（4减7分之4）*7=24
第2个回答 2017-01-20
(4-(4/7))*7
(4-(4/7))*7
(4-(4/7))*7
(4-(4/7))*7
7*(4-(4/7))
7*(4-(4/7))
7*(4-(4/7))
7*(4-(4/7))本回答被网友采纳
(4-(4/7))*7
(4-(4/7))*7
(4-(4/7))*7
7*(4-(4/7))
7*(4-(4/7))
7*(4-(4/7))
7*(4-(4/7))本回答被网友采纳
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