第1个回答 2011-05-26
1
(54+9/13)÷9
=711/13×1/9
=6 1/13
2.
276×2/7÷276
=276÷276×2/7
=2/7
3.
92.5×9.9+92.5%
=915.75+92.5%
=91575%+92.5%
=916.675
4.
5.48+8.73+4.52+1.27
=5.48+4.52+8.73+1.27
=1+1
=2
5.
(6.3-6.3×0.9)÷6.3
=(6.3×0.1)÷6.3
=0.63÷6.3
=0.1
6.
168.8÷(24.3×2-6.4)
=168.8÷42.2
=4
7.
3/5÷(4/5+5/8×2/15)
=36/53
8.
105×13-1890÷18
=1395-105
=1290
9.
1.5×【0.02÷(2.1-2.09)】
=1.5×2
=3
10.
375+(5706-5706)÷48
=375÷48
=7.8125
11.
9.7÷1.25÷0.8
=9.7÷(1.25×0.8)
=9.7
12.
0.4×1.25×25×8
=0.4×25×(1.25×8)
=10×10
=100
13.
17.5-4.25-5.75
=17.5-(4.25+5.75)
=7.5
14.
0.125×0.25×32
=0.125×0.25×4×8
=1
15.
(7/20+11/50+6/25)÷2/5
=81/100÷2/5
=2 1/40
16.
11/16+8/13-(11/16-5/13)
=11/16+8/13-11/16+5/13
=1
17.
2500÷5/6+2500÷4/5
=2500÷(5/6+4/5)
=2500÷49/30
=74970 30/49
18.
(2/3+7/9×9/28)÷11/12
=39/77
19.
18×25%+1/4×60+42×0.25
=15+15
=30
20.
1/4÷【3/4-(7/16-1/4)】
=1 1/3
第2个回答 2011-05-25
1.(54*9+13)分之九÷9=54.44444...
2.267÷267*七分之二=七分之二
3.92.5*(9.9+0.1)=925
4.(5.48+4.52)+(8.73+1.27)=20
5.0.1*6.3/6.3=0.1
10.375+(0)/48=375
11.9.7/(1.25*0.8)=9.7
12.(8×1.25)×(25×0.4)=100
13.17.5-(4.25+5.75)=7.5
14.(8×0.125)×(0.25×0.4)=0.01
(1
(54+9/13)÷9
=711/13×1/9
=6 1/13
2.
276×2/7÷276
=276÷276×2/7
=2/7
3.
92.5×9.9+92.5%
=915.75+92.5%
=91575%+92.5%
=916.675
4.
5.48+8.73+4.52+1.27
=5.48+4.52+8.73+1.27
=1+1
=2
5.
(6.3-6.3×0.9)÷6.3
=(6.3×0.1)÷6.3
=0.63÷6.3
=0.1
6.
168.8÷(24.3×2-6.4)
=168.8÷42.2
=4
7.
3/5÷(4/5+5/8×2/15)
=36/53
8.
105×13-1890÷18
=1395-105
=1290
9.
1.5×【0.02÷(2.1-2.09)】
=1.5×2
=3
10.
375+(5706-5706)÷48
=375÷48
=7.8125
11.
9.7÷1.25÷0.8
=9.7÷(1.25×0.8)
=9.7
12.
0.4×1.25×25×8
=0.4×25×(1.25×8)
=10×10
=100
13.
17.5-4.25-5.75
=17.5-(4.25+5.75)
=7.5
14.
0.125×0.25×32
=0.125×0.25×4×8
=1
15.
(7/20+11/50+6/25)÷2/5
=81/100÷2/5
=2 1/40
16.
11/16+8/13-(11/16-5/13)
=11/16+8/13-11/16+5/13
=1
17.
2500÷5/6+2500÷4/5
=2500÷(5/6+4/5)
=2500÷49/30
=74970 30/49
18.
(2/3+7/9×9/28)÷11/12
=39/77
19.
18×25%+1/4×60+42×0.25
=15+15
=30
20.
1/4÷【3/4-(7/16-1/4)】
=1 1/3 )本回答被网友采纳
第3个回答 2011-05-25
小弟弟.可把哥哥累死了。
1、13分之703
2、3.5
3、92.5
4、20
5、0.1
6、4
7、475分之48
8、1260
9、3
10、375
11、9.7
12、100
13、7.5
14、1
15、40分之81=2.025
16、1
17、5000
18、11分之21
19、30
20、9分之4
自己算的,绝对准确,过程不好弄,所以没写,自己动手算吧!算完对答案。
第4个回答 2011-05-25
1、=6+1/13=79/13
2、=2/7
3、=9.25x(9.9+0.1)=92.5
4、=(5.48+4.52)+(8.73+1.27)=10+10=20
5、=6.3x(1-0.9)÷6.3=0.1
6、=168.8÷42.2=4
7、=3/5÷(4/5+1/12)=3/5÷53/60=36/53
8、=105x13-105=105x(13-1)=1260
9、=1.5x2=3
10、=375+0=375
11、=9.7÷(1.25x0.8)=9.7x1=9.7
12、=(0.4x25)x(1.25x8)=10x10=100
13、=17.5-(4.25+5.75)=17.5-10=7.5
14、=(0.125x8)x(0.25x4)=1
15、=58/50÷2/5=58/50x5/2=29/10
16、=题目不清
17、=2500x6/5+2500x4/5=2500x2=5000
18、=(2/3+1/4)÷11/12=11/12÷11/12=1
19、=18x1/4+1/4x60+42x1/4=(18+60+42)x1/4=30
20\=9/36÷(3/4+1/4-7/16)=9/36÷9/16=4/9