計算下列各題。(能簡算的要簡算)15(

2021-04-18 16:54:37 字數 2406 閱讀 8587

1樓:

3/1+7/2—4/1

1/3-1/4+2/7

=28/84-21/84+12/84

=19/84答

1、計算下面各題。(能簡算的要簡算)15×(3/2+5/3) 〖6/5-(8/1+12/5)〗×7/3

2樓:樂為人師

15×(2/3+3/5)

= 15×2/3+15×3/5

=10+9

=19〖5/6-(1/8+5/12)〗×3/7=[5/6-13/24]×3/7

=7/24×3/7

=1/8

計算下面各題。(能簡算的要簡算) 1/3×5×2/5÷1/3 1/3×1/15+1

3樓:最美晴天小奕

你敢,很高興為您解答:

1、解:

原式=5×2/5×1/3÷1/3

=5×2/5×1/3×3

=2×1

=22、解:

原式=1/3×(1/15+1/5)

=1/3×4/15

=4/45

3、解:

原式=3.7×6/5+1.3×6/5

=(3.7+1.3)×6/5

=5×6/5

=64、解:

原式=3/4-(6/7-1/4)×17/9=(3/4+1/4-7/16)×17/9

=9/16×17/9

17/16

計算下面各題,能簡算的要簡算:1/3×1/15+1/3×1/5 3/4-5/8×3/4 (4/5-

4樓:匿名使用者

3/4-5/8×3/4=3/4×(1-5/8)=3/4×3/8=9/32

(4/5-2/3)×15/8=4/5×15/8-2/3×15/8=3/2-5/4=6/4-5/4=1/4

14/25÷(1/5+1/2)=14/25÷1/5+14/25÷1/2=14/25×(5+2)=14/25×7=98/25

24×22/23+1/23=(23+1)×22/23+1/23=23×22/23+1×22/23+1/23=22+1=23

5樓:極灬魄

1、1/3乘(1/15+1/5)等於4/45

計算下面各題,能簡便計算的要簡便計算。 3/5+3/4-5/6 8/9+2/7+5/7 15/8-3/4-1/4 = = = = = =

6樓:吃葷的兔子

3/5+3/4-5/6 8/9+2/7+5/7 15/8-3/4-1/4

=36/60+45/60-50/60 =8/9+1 =15/8-1

=31/60 =17/9 =7/8

9/7-1/6+3/7 7/4-12/23-3/4 5-6(3/8+1/6)

= 12/7-1/6 = 1-12/23 =5-(9/4+1)

= 72/42-7/42 =11/23 =7/4

=65/42

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

數學1.計算題,能簡便的要簡便計算。1/3÷5/6÷16/15 【1-(1/5+1/6)】÷1/12 ( 5/6-3/4)÷(1/4-1/8)

7樓:牢廷謙籍念

1、計算題:

解:1/3÷5/6÷16/15

=1/3×6/5×15/16=3/8

[1-(1/5+1/6)]÷1/12 =[1-11/30]×12=19/30×12=38/5

(5/6-3/4)÷(1/4-1/8)=1/12÷1/8=1/12×8=2/3

應用題:

解:30÷5/6×8/9=36×8/9=32(千克)答:丙筐梨的質量是32千克.

計算下列各題,能簡算的要簡算3/4-1/6+4/9等於多少?

8樓:義明智

分數計算

3/4-1/6+4/9

=27/36-6/36+16/36

=37/36

脫式計算下列各題 能簡算的要簡算

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