Tính BT sau: A =\(\left(\frac{878787}{959595}+\frac{-8787}{9595}\right).\frac{1234321}{5678765}\)
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22 tháng 5 2015
\(A=\left(\frac{878787}{959595}-\frac{8787}{9595}\right).\frac{1234321}{5678765}\)
\(=\left(\frac{87}{95}-\frac{87}{95}\right).\frac{1234321}{5678765}\)
\(=0.\frac{1234321}{5678765}\)
\(=0\)
LV
1
5 tháng 5 2017
A= \(\left(\frac{878787}{959595}+-\frac{8787}{9595}\right).\frac{1234321}{5678765}\)
A= \(\left(\frac{87}{95}+\frac{-87}{95}\right).\frac{1234321}{5678765}\)
A= \(0.\frac{1234321}{5678765}\)
A= 0
NH
1
20 tháng 6 2015
\(\left[\frac{878787}{959595}+\left(-\frac{8787}{9595}\right)\right]\times\frac{1234321}{5678765}=\left[\frac{87}{95}+\left(-\frac{87}{95}\right)\right]\times\frac{1234321}{5678765}=0\times\frac{1234321}{5678765}=0\)
NM
13
Q
25 tháng 4 2016
A = (878787 : 959595 - 8787 : 9595) x 1234321 : 5678765
A = ( 878787 : 8787 - 959595 : 9595 ) x 1234321 : 5678765
A = ( 100,009901 - 100,009901 ) x 1234321 : 5678765
A = 0 x 1234321 : 5678765
A = 0 : 5678765
A = 0
LD
2
30 tháng 6 2020
\(A=\left(\frac{878787}{959595}+-\frac{8787}{9595}\right).\frac{1234231}{5678765}\)
\(=\left(\frac{87}{95}+-\frac{87}{95}\right).\frac{1234231}{5678765}\)
\(=0.\frac{1234231}{5678765}=0\)
B
30 tháng 6 2020
Ta có :
\(A=\left(\frac{878787}{959595}+\frac{-8787}{9595}\right)\)\(.\frac{1234231}{5678765}\)
\(A=\left(\frac{878787\div10101}{959595\div10101}-\frac{8787\div101}{9595\div101}\right)\)\(.\frac{1234231}{5678765}\)
\(A=\left(\frac{87}{95}-\frac{87}{95}\right)\)\(.\frac{1234231}{5678765}\)
\(A=0.\frac{1234231}{5678765}\)
\(A=0\)
Vậy A=0 .
DV
1
23 tháng 3 2016
(878787/959595 + -8787/9595) x 1234321/5678765
=(87/95+ -87/95)x 1234321/5678765
=87+(-87)/95x 1234321/5678765
=0x1234321/5678765
=0
\(A=\left(\frac{878787}{959595}+\frac{-8787}{9595}\right).\frac{1234321}{5678765}\)
\(=\left(\frac{87.10101}{95.10101}-\frac{87.101}{95.101}\right).\frac{1234321}{5678765}\)
\(=\left(\frac{87}{95}-\frac{87}{95}\right).\frac{1234321}{5678765}\)
= 0
\(A=\left(\frac{87}{95}+\frac{-87}{95}\right).\frac{1234321}{5678765}\)
=>\(A=0.\frac{1234321}{5678765}\)
=>A=0