Proszę o pomoc, bardzo pilne! Proszę o rozwiązanie przykładów z załącznika, daję naj!

r) [latex]frac{0,35+1frac{13}{20}}{-4}=frac{ frac{35}{100} +1frac{13}{20}}{-4}=frac{ frac{7}{20} +1frac{13}{20}}{-4}=[/latex] [latex]frac{1frac{20}{20}}{-4}=frac{2}{-4}=- frac{1}{2}[/latex] ==================== s) [latex]frac{5}{-frac{2}{3}}+frac{-frac{1}{2}}{8}=5cdot left(- frac{3}{2} ight) - frac{1}{2}cdot frac{1}{8}=- frac{15}{2}- frac{1}{16}= [/latex] [latex]- frac{120}{16}- frac{1}{16}=-frac{121}{16}=-7 frac{9}{16} [/latex] ==================== t) [latex]-frac{-2frac{1}{3}}{frac{7}{-3}}=-left(- frac{7}{3} ight)cdot left(- frac{3}{7} ight) =-1[/latex] ==================== u) [latex]frac{2frac{1}{5}:0,1-25}{-(-9-(-8))}=frac{frac{11}{5}: frac{1}{10} -25}{-(-9+8)}=frac{frac{11}{5}cdot frac{10}{1} -25}{-17}=[/latex] [latex]frac{22 -25}{-17}= frac{-3}{-17}=frac{3}{17}[/latex] ==================== v) u) [latex]frac{2frac{1}{5}:0,1-25}{-(-9-(-8))}=frac{frac{11}{5}: frac{1}{10} -25}{-(-9+8)}=frac{frac{11}{5}cdot frac{10}{1} -25}{-(-1)}=[/latex] [latex]frac{22 -25}{1}= frac{-3}{1}=-3[/latex] ==================== w) [latex]frac{0,3cdot0,5cdotfrac{1}{2}}{frac{1}{2}cdot0,5-0,3}cdotfrac{1,4+0,6cdot2}{(1,4-0,6)cdot2}=frac{ frac{3}{10}cdot frac{1}{2}cdotfrac{1}{2}}{frac{1}{2}cdot frac{1}{2} - frac{3}{10} }cdotfrac{1,4+1,2}{0,8cdot2}=[/latex] [latex]frac{ frac{3}{40}}{frac{1}{4} - frac{3}{10} }cdotfrac{2,6}{1,6}=frac{ frac{3}{40}}{frac{5}{20} - frac{6}{20} }cdotfrac{26}{16}=[/latex] [latex]frac{ frac{3}{40}}{- frac{1}{20} }cdotfrac{13}{8}=frac{3}{40}cdot left(- frac{20}{1} ight)cdotfrac{13}{8}=[/latex] [latex]-frac{3}{2}cdotfrac{13}{8}=- frac{39}{16}=-2 frac{7}{16}[/latex] ==================== x) [latex]frac{frac{1}{3}-frac{2}{5}}{frac{1}{2}-frac{1}{5}}cdot frac{frac{7}{8}-frac{1}{2}}{frac{5}{6}-frac{3}{4}}=frac{frac{5}{15}-frac{6}{15}}{frac{5}{10}-frac{2}{10}}cdot frac{frac{7}{8}-frac{4}{8}}{frac{10}{12}-frac{9}{12}}=[/latex] [latex]frac{-frac{1}{15}}{frac{3}{10}}cdot frac{frac{3}{8}}{frac{1}{12}}=left(-frac{1}{15}cdot frac{10}{3} ight)cdot left( frac{3}{8}cdot frac{12}{1} ight)=[/latex] [latex]- frac{2}{9}cdot frac{9}{2}=-1[/latex]