oblicz liczby wymierne -2 1/5+3,3= 1 5/6-3 1/3= 4,3-7,5= -4,5-2 1/4= (-0,35)*2= 1/8*5/4= na jutro zgóry dzieki

[latex]-2 frac{1}{5} + 3,3 =- frac{22}{10} + frac {33}{10} = frac {11}{10} = 1frac{1}{10}[/latex] [latex]1 frac{5}{6} - 3 frac{1}{3} = frac{11}{5} - frac{10}{3} = frac {33}{15} - frac{50}{15} = -frac{17}{15} = -1 frac{2}{15}[/latex] [latex]4,3 - 7,5 = 4 frac{3}{10} - 7 frac{5}{10} = frac{43}{10} - frac{75}{10} = - frac{32}{10} = -3 frac{1}{5}[/latex] [latex]-4,5 - 2 frac{1}{4} = -4 frac{5}{10} - frac{9}{4} = - frac{45}{10} - frac{9}{4} = -frac{90}{20} - frac{45}{20} = - frac{135}{20} = - frac{27}{4} = -6 frac{3}{4}[/latex] [latex](-0,35) * 2 = (- frac{35}{100}) * frac{2}{1} = - frac{70}{100} = - frac{7}{10}[/latex] [latex]frac{1}{8} * frac{5}{4} = frac{1}{8} * frac{10}{8} = frac{10}{8} = frac{5}{4} = 1 frac {1}{4}[/latex]