簡便運算10 8計算過程,簡便運算10 9 3 4 1 4 5 13 5 14 8 13 2 3 2 13 1 3 11 13 5 6 (3 4 1 6) 7 8 5 16 3 16 1 8 計算過程

2021-03-23 08:44:04 字數 2795 閱讀 9450

1樓:淨壇使者

10/9 - 3/4 - 1/4

= 10/9 - ( 3/4 + 1/4 )= 1/9 + 1 - 1

= 1/9

5/13 - 5/14 + 8/13

= 5/13 + 8/13 - 5/14

= 13/13 - 5/14

= 1 - 5/14

= 9/14

2/3 + 2/13 + 1/3 + 11/13= ( 2/3 + 1/3 ) + ( 2/13 + 11/13 )= 3/3 + 13/13

= 1 + 1

= 25/6 - ( 3/4 - 1/6 )= 5/6 + 1/6 - 3/4

= 1 - 3/4

= 1/4

7/8 + 5/16 - 3/16 + 1/8= ( 7/8 + 1/8 ) + ( 5/16 - 3/16 )= 1 + 1/8

= 9/8

2樓:匿名使用者

解:10/9-3/4-1/4=10/9-(3/4+1/4)=1/95/13-5/14+8/13 =5/13+8/13-5/14=1-5/14=9/14

2/3+2/13+1/3+11/13=2/3+1/3+2/13+11/13=1=1=2

5/6-(3/4-1/6)=5/6+1/6-3/4=1/47/8+5/16-3/16+1/8 =7/8+1/8+5/16-3/16=9/8

3樓:匿名使用者

在玩小學生嗎?不知道過程可以從幼兒園上起了

能簡便計算的要用簡便計算4/7+1/14-1/2 5/3-3/8-5/8 3/5+3/11+7/5+11 3/4-{5/6-1/3} 10

4樓:匿名使用者

4/7+1/14-1/2

=4/7-1/2 +1/14

=8/14-7/14+1/14

=(8-7+1)/14

=2/14

=1/7

5/3-3/8-5/8

=5/3-(3/8+5/8)

=5/3-1

=2/3

3/5+3/11+7/5+11 3/4-{5/6-1/3}=3/5+7/5+3/11+11

=2+11+3/11

=13+3/11

=13又311

3/4-{5/6-1/3}

=3/4-5/6+1/3

=9/12-10/12+4/12

=(9-10+4)/12

=3/12

=1/4

2/3+4/9-3/20-1/10-3/4怎樣簡便運算 1/8+5/12+5/6-7/72怎樣簡便運算

5樓:匿名使用者

2/3+4/9-3/20-1/10-3/4=(6/9+4/9)-(3/20+2/20+15/20)=10/9-1

=1/9

1/8+5/12+5/6-7/72

=(1/8-7/72)+(5/12+5/6)=(9/72-7/72)+(5/12+10/12)=1/36+17/12

=1/36+51/36

=52/36

=13/9

遞等式計算 3/4-(2/5+3/10) 5/7+1/4-9/14 3/4+3/6-5/8 5/9

6樓:阿凡達教

4/3—(2/5+3/1o丿=4o/3o一{i2/30+9/3o)=4o/30_21/3o=丨9/30先通分再計算

用簡便方法計算:5/6-4/9+1/6-2/9=? 13/15-7/112/15+6/11=? 7/15-1/4+8/15-3/4=?

7樓:超電炮姐

5/6-4/9+1/6-2/9

=5/6+1/6-4/9-2/9

=1-6/9

=3/9

=1/3

13/15-7/112/15+6/11

這個題你輸錯了吧

應該是 13/15-7/11+2/15+6/11=13/15+2/15-7/11+6/11=1-1/11

=10/11

7/15-1/4+8/15-3/4

=7/15+8/15-1/4-3/4

=1-1

=4/12

=1/3

0.7+11/15-3/10+4/15

=7/10-3/10+11/15+4/15=4/10+1

=1.4

8樓:李佳宇大王

簡便計算:

5/6-4/9+1/6-2/9

=(5/6+1/6)-(4/9+2/9)

=1-2/3

=1/3

13/15-7/11+2/15+6/11

=(13/15+2/15)-(7/11-6/11)=1-1/11

=10/11

7/15-1/4+8/15-3/4

=(7/15+8/15)-(1/4+3/4)=1-1

=011/12-1/18+5/12-17/18=(11/12+5/12)-(1/18+17/18)=4/3-1

=1/3

0.7+11/15-3/10+4/15

=7/10+11/15-3/10+4/15=(7/10-3/10)+(11/15+4/15)=2/5+1

=1又2/5

(望採納,謝謝)

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