Question

[ngọc linh]

Tính: \(\frac{-7}{12}\)\(\div\)\(\frac{13}{6}\)+\(\frac{-7}{12}\)\(\div\)\(\frac{13}{7}\)\(\times\)\(\frac{2\times|-8|}{3}\)

Answer 1

[Lê Tài Bảo Châu]

\(\frac{-7}{12}:\frac{13}{6}+\frac{-7}{12}:\frac{13}{7}.\frac{2.|-8|}{3}\)

\(=\frac{-7}{12}.\frac{6}{13}+\frac{-7}{12}.\frac{7}{13}.\frac{2.8}{3}\)

\(=\frac{-7}{12}.\left(\frac{6}{13}+\frac{7}{13}.\frac{2.8}{3}\right)\)

\(=\frac{-7}{12}.\frac{10}{3}\)

\(=\frac{-35}{18}\)

Answer 2

[Đông Phương Lạc]

\(\frac{-7}{12}:\frac{13}{6}+\frac{-7}{12}:\frac{13}{7}\times\frac{2\times\left|-8\right|}{3}\)

\(=\frac{-7}{12}\times\frac{6}{13}+\frac{-7}{12}\times\frac{7}{13}\times\frac{2\times8}{3}\)

\(=\frac{-7}{12}\times\left(\frac{6}{13}+\frac{7}{13}+\frac{2\times8}{3}\right)\)

\(=\frac{-7}{12}\times\frac{10}{3}\)

\(=\frac{-35}{18}\)

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