Odpowiedź:
[tex]5,8-5\frac{8}{9}+3,4-3\frac{3}{27}=5,8+3,4-5\frac{8}{9}-3\frac{1}{9}=9,2-8\frac{9}{9}=9,2-9=0,2\\\\\\11-(12\frac{5}{7}-2,375)=11-(12\frac{5}{7}-2\frac{375}{1000})=11-(12\frac{5}{7}-2\frac{3}{8})=11-(12\frac{40}{56}-2\frac{21}{56})=\\\\=11-10\frac{19}{56}=10\frac{56}{56}-10\frac{19}{56}=\frac{37}{56}[/tex]
[tex]25\frac{2}{13}-(7\frac{1}{6}-2\frac{2}{3})=25\frac{2}{13}-(7\frac{1}{6}-2\frac{4}{6})=25\frac{2}{13}-(6\frac{7}{6}-2\frac{4}{6})=25\frac{2}{13}-4\frac{3}{6}=\\\\=25\frac{2}{13}-4\frac{1}{2}=25\frac{4}{26}-4\frac{13}{26}=24\frac{30}{26}-4\frac{13}{26}=20\frac{17}{26}[/tex]
