能簡算就簡算6 5X7一6 2X

2021-04-18 09:59:09 字數 2817 閱讀 6869

1樓:匿名使用者

36/5 20 644/5 5/48

計算下面各題能簡算的要簡算 5/6-1/2+1/4 5/12+3/4-5/8 4/5-(3/10+1/6) 5/9+7/18+4/9 1-2/7-5/7

6/5-3/5÷(6/7)能簡算的要簡算

2樓:匿名使用者

6/5-3/5÷(6/7)

=3/5x7/6

=21/30

=7/10

3樓:寵愛此生

=6/5-3/5×7/6

=6/5-7/10

=12/10-7/10

=5/10

=1/2

3/7+1/2-3/7簡便計算5/7-1/6+5/14簡便計算7/12-(5/6-5/12)簡便計算2/3-1/2-1/18 5

4樓:淨壇使者

3/7 + 1/2 - 3/7

= 3/7 - 3/7 + 1/2

= 1/2

5/7 - 1/6 + 5/14

= 10/14 + 5/14 - 1/6

= 1 + 1/14 - 1 + 5/6

= 3/42 + 35/42

= 38/42

= 19/21

7/12 - ( 5/6 - 5/12 )= 7/12 - 5/6 + 5/12

= 1 - 5/6

= 1/6

2/3 - 1/2 - 1/18

= 12/18 - 9/18 - 1/18= 2/18

= 1/9

2x - 1/8 = 7/8

2x = 7/8 + 1/8

2x = 1

x = 1/2

x - 1/9 - 8/9 = 2

x - 1 = 2

x = 2 + 1

x = 3

5樓:匿名使用者

真是閒的蛋疼,這題就是寫出來消磨時間的!

求簡單計算方法1/2+2/3+3/4+4/5+5/6+6/7+7/8+8/9+9/10=?

6樓:匿名使用者

1/2+2/3+3/4+4/5+5/6+6/7+7/8+8/9+9/10

=9-(1/2+1/3+1/6)-(1/4+1/8)-(1/5+1/10)-1/7-1/9

=9-1-3/8-3/10-1/7-1/9=8-2341/2520

=7又2520分之179

7樓:6紅1藍

=(1-1/2)+(1-1/3)+...(1-1/10)=9-(1/2+1/3+...1/10)

=9-[1/2+1/3+1/4+1/5+1/6+1/7+1/8+1/9+1/10]

=9-[(1/2+1/3+1/6)+(1/4+1/5+1/10)+1/7+1/8+1/9]

=9-(1+11/20+1/8+1/7+1/9)=9-(1+27/40+1/9+1/7)

=9-(1+283/360+1/7)

=8-2341/2520

24÷6/7x5/14,(2/3-1/9)÷4/9要簡算 20

8樓:樂觀的愛數

24÷6/7x5/14

=24x7/6x5/14 (約分)=2x5

=1o(2/3-1/9)÷4/9

=2/3x9/4一1/9x9/4

=3/2-1/4

=5/4要簡算

9樓:艾康生物

24/6/7*5/14=24*7/6*5/14=24*5/12=10

(2/3-1/9)/4/9=2/3/4/9-1/9/4/9=3/2-1/4=5/4

10樓:匿名使用者

24÷6/7x5/14=24*49/15=392/5

(2/3-1/9)÷4/9=5/9*9/4=5/4

計算下面各題,能簡便計算的用簡便方法計算 2-6/13÷9/26 (1/3+1/4)×36 6/7×(4/5-2/3)÷1/5

11樓:數學新綠洲

2-6/13÷9/26

= 2- (6/13)×(26/9)

=2- 4/3

=2/3

.(1/3+1/4)×36

=(1/3)×36 +(1/4)×36

=12+9

=21.

6/7×(4/5-2/3)÷1/5

=(6/7)×(4/5 - 2/3)×5

=(6/7)×(4 - 10/3)

=(6/7)×(2/3)

=4/7

.3/4-3/4×4/7+9/7

=(3/4)×(1- 4/7)+

9/7=(3/4)×(3/7)+9/7

=(1/4)×(9/7)+ 9/7

=(1/4 +1)×(9/7)

=(5/4)×(9/7)

=45/28

=1又17/28

簡便計算 1/5÷(1-1/3×1/2) 9/10×【7/8÷(4/5+1/4)】 (1/4-1/4×1/2)÷1/4 5/6+9/ 10

12樓:凌月霜丶

簡便計算

1/5÷(1-1/3×1/2)

=1/5÷(1-1/6)

=1/5*6/5

=6/25

直接計算

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