早教吧作业答案频道 -->数学-->
(5/7+2/27)×7+13/27的简便方法
题目详情
(5/7+2/27)×7+13/27的简便方法
▼优质解答
答案和解析
(5/7+2/27)×7+13/27
=(5/7)×7+(2/27)×7+13/27
=5+14/27+13/27
=5+(14/27+13/27)
=5+1
=6
=(5/7)×7+(2/27)×7+13/27
=5+14/27+13/27
=5+(14/27+13/27)
=5+1
=6
看了 (5/7+2/27)×7+1...的网友还看了以下：