Oblicz:
a) 2½:(-1⁵/₂) = ⁵/₂:(-⁷/₂) = ⁵/₂*(-²/₇) = -⁵/₇
b) -16: (-3¹/₅) = -¹⁶/₁ : (-¹⁶/₅) = -¹⁶/₁ * (- ⁵/₁₆) =5
c) (10-2¹/₂):³/₂= ( ¹⁰/₁ - ⁵/₂) :³/₂ = (²⁰/₂ - ⁵/₂ ):³/₂ = ¹⁵/₂ :³/₂ = ¹⁵/₂* ²/₃ = 5
d) 4,25-(-8,75+7,26)= 4,25-(-1,49) = 4.25+1.49 = 5.74
e) 4.85-8.45= -3.60
f) 3.1-2.7=0,40
g) (5-2½):½ = (⁵/₁-⁵/₂):½ = (¹⁰/₂-⁵/₂):½=⁵/₂:½= ⁵/₂*²/₁=5
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a) 2½:(-1⁵/₂) = ⁵/₂:(-⁷/₂) = ⁵/₂*(-²/₇) = -⁵/₇
b) -16: (-3¹/₅) = -¹⁶/₁ : (-¹⁶/₅) = -¹⁶/₁ * (- ⁵/₁₆) =5
c) (10-2¹/₂):³/₂= ( ¹⁰/₁ - ⁵/₂) :³/₂ = (²⁰/₂ - ⁵/₂ ):³/₂ = ¹⁵/₂ :³/₂ = ¹⁵/₂* ²/₃ = 5
d) 4,25-(-8,75+7,26)= 4,25-(-1,49) = 4.25+1.49 = 5.74
e) 4.85-8.45= -3.60
f) 3.1-2.7=0,40
g) (5-2½):½ = (⁵/₁-⁵/₂):½ = (¹⁰/₂-⁵/₂):½=⁵/₂:½= ⁵/₂*²/₁=5