Ответ:
[tex]\frac{16}{63} +\frac{12}{63}=\frac{28}{63} =\frac{4}{9} \\ \\ \frac{53}{85} -\frac{19}{85} =\frac{34}{85}=\frac{2}{5}\\ \\ 8\frac{34}{81} +2\frac{38}{81}=10\frac{72}{81} =10\frac{8}{9} \\ \\ 3\frac{49}{56}-3\frac{17}{56} =\frac{32}{56} =\frac{4}{7}[/tex]
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Ответ:
[tex]\frac{16}{63} +\frac{12}{63}=\frac{28}{63} =\frac{4}{9} \\ \\ \frac{53}{85} -\frac{19}{85} =\frac{34}{85}=\frac{2}{5}\\ \\ 8\frac{34}{81} +2\frac{38}{81}=10\frac{72}{81} =10\frac{8}{9} \\ \\ 3\frac{49}{56}-3\frac{17}{56} =\frac{32}{56} =\frac{4}{7}[/tex]
Пошаговое объяснение: