1楼:新野旁观者
(5/6-3/4)÷(2/3+4/9)
=1/12÷10/9
=3/40
(1-1/6×2/5)÷7/9
=(1-1/15)÷7/9
=14/15÷7/9
=6/5
(5/9+1/13)×9+4/13
=5/9×9+1/13×9+4/13
=5+(9/13+4/13)
=5+1
=65/4-(3/4-1/8)-3/8
=(5/4-3/4)-(3/8-1/8)
=1/2-1/4
=1/4
2楼:kz菜鸟无敌
(5/6-3/4)÷(2/3+4/9)
= (10/12-9/12)÷(6/9+4/9)=1/12÷10/9
=1/12 x 9/10
=3/40
~~~~~~ (1-1/6×2/5)÷7/9=(1-1/15) ÷ 7/9
=14/15 x 9/7
=6/5
~~~~~
(5/9+1/13)×9+4/13
=5/9 x 9 + 1/13 x 9 +4/13=5 + 9/13 + 4/13
=5 + 1
=6~~~~~
5/4-(3/4-1/8)-3/8
=5/4 - ( 6/8 - 1/8 ) - 3/8=5/4 - 5/8 -3/8
=5/4 - 1
=1/4
(5/6-3/4)÷(2/3-4/9)=?过程
3楼:匿名用户
(5/6-3/4)÷(2/3-4/9)
=(10/12-9/12)÷(6/9-4/9)=1/12 ÷2/9
=1/12x9/2
=3/8
4楼:匿名用户
=(10/12-9/12)÷(6/9-4/9)=1/12÷2/9
=1/12×9/2
=3/8
(5/6-3/4)除(2/3+4/9) 10
5楼:匿名用户
(5/6-3/4)÷(2/3+4/9)
=1/12÷10/9
=1/12×9/10
=3/40
2/3-(5/6-3/4)÷3/8 和 5/14÷{6/7×(4/9+1/6)} 注{ 为大括号
6楼:我不是他舅
2/3-(5/6-3/4)÷3/8
=2/3-1/12×8/3
=2/3-2/9
=4/9
5/14÷
=5/14÷(6/7×7/18)
=5/14÷1/3
=15/14
六年级分数简便运算,1/2÷4/5÷(2/9×3/8) (5/6-3/4)÷5/12÷9/5 3/7÷[5/7-(3/7+1/5)]
7楼:末世警醒
1/2÷4/5÷(2/9×3/8)
=1/2 x 5/4 x9/2 x 8/3=5/8 x 8/3 x 9/2
=5/3 x 9/2
=15/2
8楼:**1050187966乐
1.1/2÷4/5÷(2/9×3/8)
=1/2×5/4÷1/12
=5/8×12
=15/2
=7.5
2.(5/6-3/4)÷5/12÷9/5 3/7÷[5/7-(3/7+1/5)]
简算: 9/14÷(5/6-3/4)×7/24 2/5×101-40% 方程 1÷(x+2/3)=4/5 18-20%x-1/4=9 10
9楼:匿名用户
简算: 9/14÷(5/6-3/4)×
7/24
=[84×9/14]÷回[84×(5/6-3/4)]×7/24=54÷(70-63)×7/24
=54/7 ×7/24
=9/4
2/5×101-40%
= 2/5×101-2/5
=2/5 ×(101-1)
=2/5 ×100
=40方程 1÷(x+答2/3)=4/5
5=4(x+2/3)
15=12x+8
12x=7
x=7/12
18-20%x-1/4=9
9=1/5x+1/4
180=4x+5
4x=175
x=175/4
10楼:小白杨刺玫瑰
9/14÷(5/6-3/4)×7/24
=9/14÷1/12×7/24
=9/14×12×7/24
=9/4
2/5×101-内40%
=2/5×101-2/5×1
=2/5×(101-1)
=2/5×100
=401÷(x+
容2/3)=4/5
解:x+2/3=1÷4/5
x=5/4-2/3
x=7/12
18-20%x-1/4=9
解:72/4-1/5x-1/4=9
71/4-1/5x=36/4
1/5x=35/4
x=1175/4
(5/6-3/4)÷5/12÷9/5 3/7÷[5/7-(3/7+1/5)] 这两道题目要求简便计算 可是找不到 简便
11楼:小咩咩在路上
(5/6-3/4)÷5/12÷9/5
=(5/6-3/4)*12/5*5/9
=(5/6-3/4)*4/3=5/3-1=2/3
2+3 4-6 5 6 7-1 2+4 5 3
1楼 新野旁观者 1 2 3 4 6 5 10 20 15 20 24 20 1 20 6 7 1 2 4 5 5 14 4 5 81 70 3 4 7 12 5 7 3 4 7 12 5 7 1 6 5 7 37 42 2 3 13 15 1 3 2 3 1 3 13 15 1 13 15 1又1...
求1 1+2 2+3 3+4 4+5 5+6 6+7
1楼 ys双鱼座 原式 1 4 9 16 25 36 49 64 81 100 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 3 5 5 5 5 5 5 5 5 17 17 19 1 10 3 9 5 8 7 7 9 6 11 5 13 4 15 3 17 2 19 10 ...
2+2+2 6 3 3-3 6 4+4+4 6 5+5 5 6 6+6-6 6 7-7
1楼 匿名用户 9x 9 9 6 9 9 9 6 2 2 2 6 3 3 3 6 4 4 4 6 5 5 5 6 6 6 6 6 7 7 7 2楼 李快来 朋友 请及时采纳正确答案 下次还可能帮您 您采纳正确答案 您也可以得到财富值 谢谢。 3楼 匿名用户 1 1 1 3 6 2 2 2 6 3 3...