[latex](7 - 5 frac{2}{5}) * frac{1}{4} = 1 frac{3}{5} * frac{1}{4} = frac{8}{5} *frac{1}{4} = frac{8}{20} = frac{4}{10} = frac{2}{5} \ ( frac{7}{9} - frac{47}{72} ) : 1 frac{1}{4} = ( frac{56}{72} - frac{47}{72}) : frac{5}{4} = frac{9}{72} * frac{4}{5} = frac{1}{8} * frac{4}{5} = frac{4}{40} = frac{1}{10} \ 6 * (1 frac{1}{3}) ^{2} = 6 * (frac{4}{3} * frac{4}{3}) = 6 * frac{16}{9} = frac{96}{9} = 10 frac{6}{9} = 10 frac{2}{3} [/latex] [latex]( frac{5}{7}) ^{2} : frac{5}{7} = frac{5}{7} * frac{5}{7} : frac{5}{7} = frac{25}{49} : frac{5}{7} = frac{25}{49} * frac{7}{5} = frac{5}{7} \ ( frac{1}{3} - frac{1}{4}) ^{2} = (frac{4}{12} - frac{3}{12}) ^{2} = frac{1}{12} * frac{1}{12} = frac{1}{144} [/latex] [latex]( frac{2}{5}) ^{2} + 4 frac{1}{2} * 2frac{2}{3} = ( frac{2}{5} * frac{2}{5}) + frac{9}{2} * frac{8}{3} = frac{4}{25} + 3 * 4 = frac{4}{25} + 12 = 12 frac{4}{25} \ 5 * ( frac{1}{2}) ^{2} + 15 * ( frac{1}{3}) ^{2} = 5 * frac{1}{4} + 15 * frac{1}{9} = frac{5}{4} + 1 frac{2}{3} = 1 frac{3}{12}+ 1 frac{8}{12} = 2 frac{11}{12} [/latex] [latex] frac{1}{9} - ( frac{5}{6} - frac{2}{3}) ^{2} = frac{1}{9} - (frac{5}{6} - frac{4}{6}) ^{2} = frac{1}{9} - ( frac{1}{6}) ^{2} = frac{1}{9} - frac{1}{36} = frac{4}{36} - frac{1}{36} = frac{3}{36} = frac{1}{12} [/latex] Hasło: DROMADER
