(2/3-1/6-1/5×1/6)÷(1/5+1/6) 25/2+5/3÷4-5/7×14/5 29/5+21/5×17/7-17/7 以上简便计算或计算解方程:2/5÷a÷2/3=3/5 a÷1/2+1/4=2/5
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 13:05:08
![(2/3-1/6-1/5×1/6)÷(1/5+1/6) 25/2+5/3÷4-5/7×14/5 29/5+21/5×17/7-17/7 以上简便计算或计算解方程:2/5÷a÷2/3=3/5 a÷1/2+1/4=2/5](/uploads/image/z/1146662-62-2.jpg?t=%EF%BC%882%2F3-1%2F6-1%2F5%C3%971%2F6%EF%BC%89%C3%B7%EF%BC%881%2F5%2B1%2F6%EF%BC%89+25%2F2%EF%BC%8B5%2F3%C3%B74-5%2F7%C3%9714%2F5+29%2F5%EF%BC%8B21%2F5%C3%9717%2F7-17%2F7+%E4%BB%A5%E4%B8%8A%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E6%88%96%E8%AE%A1%E7%AE%97%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A2%2F5%C3%B7a%C3%B72%2F3%3D3%2F5+a%C3%B71%2F2%2B1%2F4%3D2%2F5)
(2/3-1/6-1/5×1/6)÷(1/5+1/6) 25/2+5/3÷4-5/7×14/5 29/5+21/5×17/7-17/7 以上简便计算或计算解方程:2/5÷a÷2/3=3/5 a÷1/2+1/4=2/5
(2/3-1/6-1/5×1/6)÷(1/5+1/6) 25/2+5/3÷4-5/7×14/5 29/5+21/5×17/7-17/7 以上简便计算或计算
解方程:2/5÷a÷2/3=3/5 a÷1/2+1/4=2/5
(2/3-1/6-1/5×1/6)÷(1/5+1/6) 25/2+5/3÷4-5/7×14/5 29/5+21/5×17/7-17/7 以上简便计算或计算解方程:2/5÷a÷2/3=3/5 a÷1/2+1/4=2/5
(2/3-1/6-1/5×1/6)÷(1/5+1/6)
=(4/6-1/6-1/30)/(11/30)
=14/11;
25/2+5/3÷4-5/7×14/5
=25/2+5/12-2
=131/12;
29/5+21/5×17/7-17/7
=29/5+17/7(16/5)
=(29*7+17*16)/35
=95/7;
2/5÷a÷2/3=3/5 ;
a=1;
a÷1/2+1/4=2/5
2a+1/4=2/5;
a=3/40