Question

A=2/13.5/9+2/13.4/9+11/13

Answer 1

\(A=\frac{2}{13}.\frac{5}{9}+\frac{2}{13}.\frac{4}{9}+\frac{11}{13}=\frac{2}{13}.\left(\frac{5}{9}+\frac{4}{9}\right)+\frac{11}{3}\)

                                                           \(=\frac{2}{13}.1+\frac{11}{13}\)

                                                             \(=\frac{2}{13}+\frac{11}{13}=1\)

Answer 2

\(A=\frac{2}{13}\cdot\frac{5}{9}+\frac{2}{13}\cdot\frac{4}{9}+\frac{11}{13}\)

\(A=\frac{2}{13}\left(\frac{5}{9}+\frac{4}{9}\right)+\frac{11}{13}\)

\(A=\frac{2}{13}\cdot1+\frac{11}{13}\)

\(A=\frac{2}{13}+\frac{11}{13}\)

\(A=\frac{13}{13}=1\)

Answer 3

2/13×(5/9+4/9)+11/13

2/13×1+11/13

2/13+11/13

1

Answer 4

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