Решите пример с дробями и разными знаменателями.40 баллов

[latex]1) 0.8*2\frac{1}{3} = \frac{8}{10} \cdot \frac{7}{3} = \frac{56}{30} \\ \\ 2) 2.7 - \frac{56}{30} = \frac{81}{30} - \frac{56}{30} = \frac{25}{30} \\ \\ 3) 5.2 - 1.4 = 3.8 \\ \\ 4) 3.8 : \frac{3}{7} = \frac{38}{10} \cdot \frac{7}{3} = \frac{266}{30} \\ \\ 5) \frac{25}{30} : \frac{266}{30} = \frac{25}{30} \cdot \frac{30}{266} = \frac{25}{266} \\ \\ 6) \frac{25}{266} : 2\frac{1}{2} = \frac{25}{266} \cdot \frac{2}{5} = \frac{5}{133} \\[/latex] [latex]\\ \\7) 0.125 : 2\frac{1}{2} = \frac{125}{1000} \cdot \frac{2}{5} = \frac{5}{100} \\ \\ 8) \frac{5}{100} + \frac{5}{133} + 0.43 = \frac{48}{100} + \frac{5}{133} = \frac{1721}{3325}[/latex]

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