Question

oblicz:

5/7x4 2/3+5/6:1 1/9=

(2 1/4-1 2/3):(1/6+2/9)=

prosze o szybkie rozwionzanie z gury dzienkuje

Answer 1

oblicz:

 

5/7x4 2/3+5/6:1 1/9=

= (5/7)*(14/3) + (5/6):(10/9) =

= (10/3) + (5/6)*(9/10) =

= (10/3) + (3/4) =

= (40/12 ) + ( 9/12) =

= 49/12 =

= 4 i 1/12

 

 

(2 1/4-1 2/3):(1/6+2/9)=

= (9/4 - 5/3) : ( 3/18 + 4/18) =

= (27/12 - 20/12) : ( 7/18) =

= (7/12) : (7/18) =

= (7/12)*(18/7) =

= 3/2 =

= 1,5

Answer 2

to będzie 4¹/₁₂ i 2¹/₁₀

⁵/₇·4²/₃+⅚:1¹/₉=⁵/₇·¹⁴/₃+⅚·⁹/₁₀=⁵/₁·²/₃+¹/₂·³/₂=¹⁰/₃+³/₄=⁴⁰/₁₂+⁹/₁₂=⁴⁹/₁₂₂=4¹/₁₂

(2¹/₄-1²/₃):(⅙+¹/₉)=(1¹⁵/₁₂-1⁸/₁₂):(³/₁₈+²/₁₈)=⁷/₁₂·¹⁸/₅=⁷/₂·³/₅=²¹/₁₀=2¹/₁₀