Odpowiedź:
[tex]\huge\boxed{\boxed{1)=1\frac{23}{30}}}[/tex]
[tex]\huge\boxed{\boxed{2)=2\frac{8}{15}}}[/tex]
Szczegółowe wyjaśnienie:
[tex]1,1+\frac{2}{3}=1\frac{1}{10}+\frac{2}{3}=1\frac{1\cdot3}{10\cdot3}+\frac{2\cdot10}{3\cdot10}=1\frac{3}{30}+\frac{20}{30}=1\frac{23}{30}\\\\0,7+1\frac{5}{6}=\frac{7}{10}+1\frac{5}{6}=\frac{7\cdot3}{10\cdot3}+1\frac{5\cdot5}{6\cdot5}=\frac{21}{30}+1\frac{25}{30}=1\frac{46}{30}=2\frac{16}{30}=2\frac{16:2}{30:2}=2\frac{8}{15}[/tex]
