1樓:妙酒
12×(2/3+1/6)
=12x2/3+12x1/6
=8+2
=101/4÷
(1-1/2-1/4)
=1/4÷(1-2/4-1/4)專
=1/4÷1/4
=11/8×屬5/12+11/12÷8
=1/8x5/12+11/12x1/8
=1/8x(5/12+11/12)
=1/8x16/12
=2/12
=1/6
2樓:匿名使用者
12×(襲2/3+1/6)
=12×2/3+12×1/6
=8+2
=101/4÷(1-1/2-1/4)
=1/4÷(1/4)
=11/8×5/12+11/12÷8
=1/8×5/12+11/12×1/8
=1/8×(5/12+11/12)
=1/8×16/12
=1/6
(1/3+1/4)÷1/6 (7/12+5/8)x24 (0.25-1/8)x(1/9+1/9) 10
3樓:匿名使用者
(1/3+1/4)÷1/6
=7/12×
zhi6
=7/2
=3又dao2分之內1
(7/12+5/8)x24
=7/12×24+5/8×24
=7×2+5×3
=14+15
=29(0.25-1/8)x(1/9+1/9)=(容1/4-1/8)×2/9
=1/8×2/9
=1/36
4樓:匿名使用者
用脫du式計算能簡便的zhi要用dao簡便計算(1/3+1/4)÷版1/6
=(1/3+1/4)×
權6=1/3×6+1/4×6
=2+1.5
=3.5
(7/12+5/8)x24
=7/12×24+5/8×24
=14+15
=29(0.25-1/8)x(1/9+1/9)=(1/4-1/8)×2/9
=1/8×2/9
=1/36
(1/3-1/4)÷1/8+5/6 8-5/9-9/1*4 (1/2-1/3+1/6)*24 4/9÷{4/5-(1/5+1/3)} 簡便運算
5樓:郭敦顒
郭敦顒回答:
(1/3-1/4)÷1/8+5/6= 8(1/3-1/4)+5/6=16/6-2+5/6=9/6=3/2。
8-5/9-9/1*4 =?此題似應是8-5/9-9/(1*4) =?(網路傳送時最易引起誤解,產生岐意),
8-5/9-9/(1*4) =8-2-5/9-1/4 =5+3/4-5/9=5+7/36。
(1/2-1/3+1/6)*24 =24/2-24/3+24/6=12-8+4=16。
4/9÷{4/5-(1/5+1/3)}=4/9÷=4/9×15/4=5/3。
6樓:匿名使用者
(1/3-1/4)÷1/8+5/6
=(1/3-1/4)×
8+5/6
=1/3×8-1/4×8+5/6
=8/3-2+5/6
=2/3+5/6
=3/2
8-5/9-9/1*4
=8-5/9-4/9
=8-(5/9+4/9)
=8-1
=7(1/2-1/3+1/6)*24
=1/2×24-1/3×24+1/6×24=12-8+4
=84/9÷{4/5-(1/5+1/3)}=4/9÷
=4/9÷
=4/9÷4/15
=4/9×15/4
=5/3
2/9+1/4÷2/5+3/8 2/3+(4/7-1/2)×1/12 2/3+3/4x=1/6 1/2x÷1/5=3/5 5x-3/5=16/15 以上這幾題怎麼做??
7樓:匿名使用者
2/9+1/4÷2/5+3/8
=2/9+1/4×
5/2+3/8
=2/9+5/8+3/8
=2/9+(5/8+3/8)
=2/9+1
=1·2/9
=11/9
2/3+(4/7-1/2)×1/12
=2/3+(4/7-1/2)×1/12
=2/3+4/7×1/12-1/2×1/12=2/3+1/21-1/24
=14/21+1/21-1/24
=15/21-1/24
=5/7-1/24
=120/168-7/168
=113/168
2/3+3/4x=1/6
3/4x=1/6-2/3
3/4x=1/6-4/6
3/4x=-1/2
x=-1/2×4/3
x=-2/3
1/2x÷1/5=3/5
1/2x=3/5×5
1/2x=3
x=3×2
x=65x-3/5=16/15
5x=16/15+3/5
5x=16/15+9/15
5x=25/15
5x=5/3
x=5/3×1/5
x=1/3
(5/6-3/4)÷(2/3+4/9) (1-1/6×2/5)÷7/9
8樓:新野旁觀者
(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
9樓:kz菜鳥無敵
(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
(-1/2+1/6-3/4+5/12)÷(-12)=?
10樓:楓葉
=1/2×12-1/6×12+3/4×12-5/12×12=6-2+9-5
=13-5
=8你好,本題已解答,如果滿意
請點右下角「採納答案」。
11樓:匿名使用者
(-1/2+1/6-3/4+5/12)÷(-12)=(-6/12+2/12-9/12+5/12)÷(-12)=(-8/12)÷(-12)
=2/3÷12
=1/18
脫式計算(能簡算的要簡算) ⑴1/4÷(2/3-3/2×1/3) ⑵24×(1/6+3/8+7/
12樓:昨夜星辰吉日
⑴1/4÷(2/3-3/2×1/3)
=1/4÷(2/3-1/2)=1/4÷(4/6-3/6)=1/4÷1/6=1/4x6=6/4=3/2;
⑵24×(1/6+3/8+7/12)=24x1/6+24x3/8+24x7/12=4+9+14=27;
⑶1/8×58+1/8×41+1/8=1/8x(58+41+1)=1/8x100=100/8=12.5.
13樓:
⑴1/4÷(2/3-3/2×1/3)=3/2
⑵24×(1/6+3/8+7/12)=27
⑶1/8×58+1/8×41+1/8=25/2
14樓:匿名使用者
(1)1/4÷(2/3一3/2×1/3)=1/4÷(4/6一3/6)=1/4×6/1=3/2
(1/2+1/4+1/6+1/8)-(1/3+1/6+1/9+1/12)+(1/4+1/8+1/12+1/16)-(1/5+1/10+1/15+1/20)
15樓:笑年
(1/2+1/4+1/6+1/8)
內-(容1/3+1/6+1/9+1/12)+(1/4+1/8+1/12+1/16)-(1/5+1/10+1/15+1/20)
=1/2(1+1/2+1/3+1/4)-1/3(1+1/2+1/3+1/4)+1/4(1+1/2+1/3+1/4)-1/5(1+1/2+1/3+1/4)
=(1+1/2+1/3+1/4)(1/2-1/3+1/4-1/5)=(12+6+4+3)/12*(30-20+15-12)/60=25/12*13/60
=65/144
16樓:匿名使用者
做亽靠洎巳!!莪葙信伱會做詘來の!!
17樓:匿名使用者
89/144------------
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