(Oblicz ! ) nie podawaj samego wyniku najlepiej na kartce oblicz . a) 1[latex] frac{1}{8} [/latex] x [latex] frac{4}{15} [/latex]= b) 2[latex] frac{3}{5} [/latex] : 5= c) 1 [latex] frac{5}{7} [/latex] : 6= d) 6[latex] frac{1}{2} [/latex] : 3 [latex]

[latex]a) 1 frac{1}{8} * frac{4}{15} = frac{9}{8} * frac{4}{15} = frac{36}{120} = frac{3}{10} [/latex] [latex]b) 2 frac{3}{5}:5 = frac{13}{5} * frac{1}{5} = frac{13}{25} [/latex] [latex]c) 1 frac{5}{7} :6 = frac{12}{7} * frac{1}{6} = frac{2}{7} [/latex] [latex]d) 6 frac{1}{2} : 3 frac{1}{4} = frac{13}{2} : frac{13}{4} = frac{13}{2} * frac{4}{13} = 2[/latex]

[latex]a) 1 dfrac{1}{8} * dfrac{4}{15} = dfrac{ ot9^3}{ ot8^2} * dfrac{ ot4^1}{ ot15^5} =dfrac{3}{10}=0,3[/latex] [latex]b) 2 dfrac{3}{5} : 5= dfrac{13}{5} *dfrac{1}{5}=dfrac{13}{25}[/latex] [latex]c) 1 dfrac{5}{7} : 6= dfrac{ ot12^2}{7} *dfrac{1}{ ot6^1}=dfrac{2}{7}[/latex] [latex]d) 6 dfrac{1}{2} : 3 dfrac{1}{4} = dfrac{13}{2} : dfrac{13}{4} = dfrac{ ot13^1}{ ot2^1} * dfrac{ ot4^2}{ ot13^1} =2[/latex]