23/25*23+46/25简便计算13/25*6/7+6/25*12/7
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/20 16:31:54
23/25*23+46/25简便计算13/25*6/7+6/25*12/7
![23/25*23+46/25简便计算13/25*6/7+6/25*12/7](/uploads/image/z/2259208-64-8.jpg?t=23%2F25%2A23%2B46%2F25%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%9713%2F25%2A6%2F7%2B6%2F25%2A12%2F7)
1:23/25×23+46/25
=23/25×23+23/25×2
=23/25×(23+2)
=23
2:13/25×6/7+6/25×12/7
=13/25×6/7+6/25×6/7×2
=6/7×(13/25+6/25×2)
=6/7×(13/25+12/25)
=6/7
=23/25×23+23/25×2
=23/25×(23+2)
=23
2:13/25×6/7+6/25×12/7
=13/25×6/7+6/25×6/7×2
=6/7×(13/25+6/25×2)
=6/7×(13/25+12/25)
=6/7