Tính a) $frac{5}{6}$ : $frac{8}{9}$ × $frac{8}{15}$ + $frac{7}{10}$ = = b) 2 - ($frac{5}{6}$ × $frac{14}{9}$) : ( $frac{5}{8}$ + $frac{5}{4}$ = =

2025-04-04 07:56:43

Tính a) $\frac{5}{6}$ : $\frac{8}{9}$ × $\frac{8}{15}$ + $\frac{7}{10}$ = = b) 2 - ($\frac{5}{6}$ × $\frac{14}{9}$) : ( $\frac{5}{8}$ + $\frac{5}{4}$ = =

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