1.oblicz:   a) 6i1/3+4,5*10= b)(3,2+7i1/3+4i1/6):2= c)5i5/6+4,5*1i2/3):4i4/15= d)10,4-5i5/7:2= e)(1.9+1/9)*10= f)(4,6-2i 1/2 ):(4i3/5+2,5)=

  [latex]a) 6frac{1}{3}+4,5*10 = 6frac{1}{3}+45 = 51frac{1}{3}\ b)(3,2+7frac{1}{3}+4frac{1}{6}):2 = (3,2+7frac{2}{6}+4frac{1}{6}):2 = \ (3,2+11frac{3}{6}):2 = (3,2+11,5):2 = 14,7:2 = 7,35[/latex]       [latex]c) (5frac{5}{6}+4,5*1frac{2}{3}):4frac{4}{15}= (frac{35}{6}+frac{45}{10}*frac{5}{3}):frac{64}{15} = (frac{35}{6}+frac{15}{2}):frac{64}{15} = \ (frac{35}{6}+frac{45}{6}):frac{64}{15} = frac{80}{6}:frac{64}{15} = frac{25}{6} = 4 frac{1}{6} [/latex]   [latex]d)10,4 - 5frac{5}{7}:2 = 10,4 - frac{40}{7}:2 = 10,4 - frac{20}{7} = 10frac{14}{35}-frac{100}{35} = \ frac{364}{35}-frac{100}{35} = frac{264}{35} = 7frac{19}{35}[/latex]     [latex]e)(1.9+frac{1}{9})*10= (frac{19}{10}+frac{1}{9})*10 = (frac{171}{90}+frac{10}{90})*10 = frac{181}{90}*10 = frac{181}{9} = 20frac{1}{9}[/latex]   [latex]f)(4,6-2frac{1}{2}):(4frac{3}{5}+2,5) = (frac{46}{10}-frac{25}{10}):(frac{46}{10}+frac{25}{10}) = frac{21}{10}:frac{71}{10} = frac{21}{71}[/latex]=