Oblicz iloczyny: a) 2 razy 7/8 razy 14 b02 8/15 razy 5 razy 6 c)2 razy 3 razy 1 1/9 Oblicz: a)(3/4 +2/3) razy 6 b)1 5/6 - 2 razy 3/4 c)2 razy 3 razy 1 1/9 Za odp daje naj!!

Zad 1 [latex]a).2* frac{7}{8} *14= frac{7}{4} *14= frac{49}{2} =24 frac{1}{2} [/latex] [latex]b).2 frac{8}{15}*5*6= frac{38}{15} *5*6= frac{38}{3} *6=76[/latex] [latex]c).2*3*1 frac{1}{9} =6* frac{10}{9} = frac{20}{3} =6 frac{2}{3} [/latex] Zad 2 [latex]a).( frac{3}{4} + frac{2}{3} )*6=( frac{9}{12} + frac{8}{12} )*6= frac{17}{12} *6= frac{17}{2} =8 frac{1}{2} [/latex] [latex]b).1 frac{5}{6} -2* frac{3}{4} =1 frac{5}{6} - frac{3}{2} =1 frac{5}{6} -1 frac{1}{2} =1 frac{5}{6} -1 frac{3}{6} = frac{2}{6} = frac{1}{3} [/latex] [latex]c).2*3*1 frac{1}{9} =6* frac{10}{9} = frac{20}{3} =6 frac{2}{3} [/latex]