Oblicz:
a)1/2x2/3x3/5=
b)3 1/4x4/5x15/26=
c)1/8x1 1/5x5 1/3x1/2=
d)3 3/5x2/3x3 3/4x1 1/9=
e)3 2/3x1 3/5x2/11x6 1/4x1/10x4 2/7=
f)1 1/5x1 2/3x1/7+(1 1/7)^=
g)(2 1/6-2/3)^-2 1/5=
h)10-2x(3 1/5-2 1/4x1/3)=
i)(7/3-5/12+1 1/2):(2 3/4-5/6)=
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a) ½·⅔·⅗=⅕
b) 3¼·⅘·¹⁵/₂₆=¹³/₄·³/₆=³⁹/₂₄=1¹⁵/₂₄
c) ⅛·1⅕·5⅓·½=⅛·⁶/₅·¹⁶/₃·½=⅖
d) 3⅗·⅔·3¾·1¹/₉=¹⁸/₅·⅔·¹⁵/₄·¹⁰/₉=¹⁰/₁=10
e) 3⅔·1⅗·²/₁₁·6¼·¹/₁₀·4²/₇=¹¹/₃·⁸/₅·²/₁₁·²⁵/₄·¹/₁₀·³⁰/₇=⁴⁰/₁₄=2¹²/₁₄=2⁶/₇
f) 1⅕·1⅔·¹/₇+(1¹/₇)²=⁶/₅·⁵/₃·¹/₇+(⁸/₇)²=²/₇+⁶⁴/₄₉=¹⁴/₄₉+⁶⁴/₄₉=⁷⁸/₄₉=1²⁹/₄₉
g)(2⅙-⅔)²-2⅕=(¹³/₆-⅔)²-¹¹/₅=(¹³/₆-⁴/₆)²-¹¹/₅=(⁹/₆)²-¹¹₅=⁸¹/₃₆-¹¹/₅= ⁵⁵/₁₈₀-³⁹⁶/₁₈₀=
= -³⁴¹/₁₈₀= -1¹⁶¹/₁₈₀
h) 10-2·(3⅕-2¼·⅓)= 10-2·(¹⁶/₅-⁷/₄·⅓)=10-2·(¹⁶/₅-⁷/₁₂)=10-2·(¹⁹²/₆₀-³⁵/₆₀)=
=10-2·(¹⁵⁷/₆₀)=10-¹⁵⁷/₃₀=¹⁰/₁-¹⁵⁷/₃₀=³⁰⁰/₃₀-¹⁵⁷/₃₀=¹⁴³/₃₀=4²³/₃₀
i) (⁷/₃-⁵/₁₂+1½) : (2¾-⅚)= (⁷/₃-⁵/₁₂+³/₂): (¹¹/₄-⁵/₆)=(²⁸/₁₂-⁵/₁₂+¹⁸/₁₂): (³³/₁₂-¹⁰/₁₂)=
=⁴¹/₁₂:²³/₁₂=⁴¹/₁₂·¹²/₂₃=⁴¹/₂₃=1¹⁸/₂₃