[latex]A) \\(1,5+ frac{3}{8} ) * frac{1}{2} =( frac{15}{10}+ frac{3}{8} ) * frac{1}{2} =( frac{3}{2}+ frac{3}{8} ) * frac{1}{2}=( frac{12}{8}+ frac{3}{8} ) * frac{1}{2}=frac{15}{8} * frac{1}{2}=frac{15}{16}\\B)\\ 11 frac{1}{3} + 0,25 : frac{3}{8}=11 frac{1}{3} + frac{ 25}{100} * frac{8}{3}= 11 frac{1}{3} + frac{ 1}{4} * frac{8}{3}= 11 frac{1}{3} + frac{2}{3}=12[/latex] [latex]C)\\ frac{1}{3}* (1,3 + 3 frac{1}{2})=frac{1}{3}* ( frac{13}{10} + frac{7}{2})=frac{1}{3}* ( frac{13}{10} + frac{35}{10})= frac{1}{3}* frac{48}{10} =frac{16}{10}=frac{8}{5}=1,6[/latex]
Oblicz. A) (1,5+ 3/8) * 1/2 = (1,5 + 0,375) * 0,5 = = 1,875 * 0,5 = 0,9375 B) 11i1/3 + 0,25 : 3/8 = = 11 1/3 + 1/4 * 8/3 = 11 1/3 + 2/3 = 12 C) 1/3* (1,3 + 3i1/2) = = 1/3 * (1,3 + 3,5) = 1/3 * 4,8 = 1/3 * 48/10 = 16/10 = 1,6