\(\left[\frac{878787}{959595}+\left(-\frac{8787}{9595}\right)\right]\times\frac{1234321}{5678765}=\left[\frac{87}{95}+\left(-\frac{87}{95}\right)\right]\times\frac{1234321}{5678765}=0\times\frac{1234321}{5678765}=0\)

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

\(A=\left(\frac{878787}{959595}-\frac{8787}{9595}\right).\frac{1234321}{5678765}\)

     \(=\left(\frac{87}{95}-\frac{87}{95}\right).\frac{1234321}{5678765}\)

      \(=0.\frac{1234321}{5678765}\)

      \(=0\)

\(A=\left(\frac{878787}{959595}+\frac{-8787}{9595}\right).\frac{1234321}{5678765}\)

\(=\left(\frac{87.10101}{95.10101}-\frac{87.101}{95.101}\right).\frac{1234321}{5678765}\)

\(=\left(\frac{87}{95}-\frac{87}{95}\right).\frac{1234321}{5678765}\)

= 0 

\(A=\left(\frac{87}{95}+\frac{-87}{95}\right).\frac{1234321}{5678765}\)

=>\(A=0.\frac{1234321}{5678765}\)

=>A=0

\(A=\left(\frac{878787}{959595}+-\frac{8787}{9595}\right).\frac{1234231}{5678765}\)

\(=\left(\frac{87}{95}+-\frac{87}{95}\right).\frac{1234231}{5678765}\)

\(=0.\frac{1234231}{5678765}=0\)

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 .

(878787/959595 + -8787/9595) x 1234321/5678765

=(87/95+ -87/95)x 1234321/5678765

=87+(-87)/95x 1234321/5678765

=0x1234321/5678765

=0

A= 0

Rút gọn

Từ đó tính được A = 0

Rút gọn

Từ đó tính được A = 0

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