Question

\(\dfrac{6}{7}:\left(4-\dfrac{2}{9}\right)\);\(\dfrac{8}{9}\left(9-\dfrac{2}{9}\right)\)

Answer 1

\(\dfrac{6}{5}\) : \(\left(4-\dfrac{2}{9}\right)\) \(=\dfrac{6}{5}:\dfrac{34}{9}\) \(=\dfrac{6}{5}.\dfrac{9}{34}=\dfrac{54}{170}\)

\(\dfrac{8}{9}\)\(\left(9-\dfrac{2}{9}\right)\) \(=\dfrac{8}{9}.\dfrac{79}{9}=\dfrac{632}{91}\)

Answer 2

Lời giải:

$\frac{6}{7}:(4-\frac{2}{9})=\frac{6}{7}: \frac{34}{9}=\frac{6}{7}\times \frac{9}{34}=\frac{27}{119}$

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$\frac{8}{9}(9-\frac{2}{9})=\frac{8}{9}.\frac{79}{9}=\frac{632}{81}$

Answer 3

Lời giải:

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