4÷4/5-4/5÷4 7/18*1/4+3/4÷18/7 简便运算
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:2024/07/28 23:48:50
4÷4/5-4/5÷4 7/18*1/4+3/4÷18/7 简便运算
![4÷4/5-4/5÷4 7/18*1/4+3/4÷18/7 简便运算](/uploads/image/z/17079045-69-5.jpg?t=4%C3%B74%2F5-4%2F5%C3%B74+7%2F18%2A1%2F4%2B3%2F4%C3%B718%2F7+%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
4÷4/5-4/5÷4
=5-1/5
=4又4/5
7/18*1/4+3/4÷18/7
=7/18x1/4+3/4x7/18
=7/18x(1/4+3/4)
=7/18x1
=7/18
=5-1/5
=4又4/5
7/18*1/4+3/4÷18/7
=7/18x1/4+3/4x7/18
=7/18x(1/4+3/4)
=7/18x1
=7/18