Ułamki zwykłe oblicz a) 3 całe 1/5-1cała 2/3= b) 4całe 3/4-2całe5/6= c) 2całe1/4=1cała3/5=

[latex]3 frac{1}{5}-1 frac{2}{3} =3 frac{3}{15}-1 frac{10}{15} =2 frac{18}{15}-1 frac{10}{15} = 1 frac{8}{15} \ \ 4 frac{3}{4}-2 frac{5}{6} = 4 frac{9}{12}-2 frac{10}{12} =3 frac{21}{12}-2 frac{10}{12} =1 frac{11}{12} \ \ 2 frac{1}{4}-1 frac{3}{5} =2 frac{5}{20}-1 frac{12}{20} = 1 frac{25}{20}-1 frac{12}{20} = frac{13}{20} \ \ [/latex]

a) 3 ¹₅ - 1²₃ = ¹⁶₅ - ⁵₃ = ⁴⁸₁₅ - ²⁵₁₅ = ²³₁₅ = 1⁸₁₅ b) 4³₄ - 2⁵₆ = ¹⁹₄ - ¹⁷₆ = ⁵⁷₁₂ - ³⁴₁₂ = ²³₁₂= 1¹¹₁₂ c) 2¹₄ - 1³₅ = ⁹₄ - ⁸₅ = ⁴⁵₂₀ - ³²₂₀ = ¹³₂₀