a) 1⅘ :( 8 ¹³/₂₅ - 1,5) =
b) 2,5-(1¾-6,5*⅙)
--------------------- =
3⅔ - ⅔* ⁶/₁₃ + ⁴/₁₃
---------- -> kreska ułamkowa
1,8 180 10
a) 1⅘ : (8 ¹³/₂₅ - 1,5) = 1,8 : (8,52 - 1,5) = 1,8 : 7,02 = ----------- = ------------- = -----------
7,02 702 39
b) 2,5 - (1¾ - 6,5 ·⅙) 2,5 - (1¾ - 6½ · ⅙) 2,5 - (1¾ - ¹³/₂ · ⅙)
--------------------------------- =------------------------------------ = ----------------------------- =
3⅔ - ⅔ · ⁶/₁₃ + ⁴/₁₃ 3⅔ - ⁴/₁₃ + ⁴/₁₃ 3⅔
2,5 - (1 ⁹/₁₂ - ¹³/₁₂) 2,5 - (1 ⁹/₁₂ - 1 ¹/₁₂) 2½ - ⁸/₁₂ 2³/₆ - ⁴/₆
= ---------------------------------- = ------------------------------------- = ------------------- = ---------------------- =
3⅔ 3⅔ ¹¹/₃ ¹¹/₃
= 1⅚ : ¹¹/₃ = ¹¹/₆ · ³/₁₁ = ½
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1,8 180 10
a) 1⅘ : (8 ¹³/₂₅ - 1,5) = 1,8 : (8,52 - 1,5) = 1,8 : 7,02 = ----------- = ------------- = -----------
7,02 702 39
b) 2,5 - (1¾ - 6,5 ·⅙) 2,5 - (1¾ - 6½ · ⅙) 2,5 - (1¾ - ¹³/₂ · ⅙)
--------------------------------- =------------------------------------ = ----------------------------- =
3⅔ - ⅔ · ⁶/₁₃ + ⁴/₁₃ 3⅔ - ⁴/₁₃ + ⁴/₁₃ 3⅔
2,5 - (1 ⁹/₁₂ - ¹³/₁₂) 2,5 - (1 ⁹/₁₂ - 1 ¹/₁₂) 2½ - ⁸/₁₂ 2³/₆ - ⁴/₆
= ---------------------------------- = ------------------------------------- = ------------------- = ---------------------- =
3⅔ 3⅔ ¹¹/₃ ¹¹/₃
= 1⅚ : ¹¹/₃ = ¹¹/₆ · ³/₁₁ = ½