6334911625

2021-03-05 19:15:49 字数 2900 阅读 3347

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

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求1 1+2 2+3 3+4 4+5 5+6 6+7

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2+2+2 6 3 3-3 6 4+4+4 6 5+5 5 6 6+6-6 6 7-7

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