Oblicz, pamiętając o kolejności wykonywania działań
a) ³/₄x⅔:¹/₂=
b)⅔:⁴/₅x²/₅=
c) 1½:(¾x2)
d) 2⅔:(1²/₃:5)
To zadanie pochodzi 10 str. 16 Matematyka 2001
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a) ³/₄x⅔:¹/₂=
¹/₂:¹/₂=
1
b)⅔:⁴/₅x²/₅=
⅔ x 5/4 x 2/5=
1/3 x 5/2 x 2/5=
1/3
c) 1½:(¾x2)=
3/2 : 3/2=
1
d) 2⅔:(1²/₃:5)=
8/3 : (5/3 :5)=
8/3 : (5/3 x 1/5)=
8/3 : 1/3=
8/3 x 3=
8
a)3/4 x 2/3 : 1/2 = 1/2 x 2/1 = 1
b)2/3 :4/5 x 2/5 = 5/6 x 2/5 =1/3
c)1 1/2 :(3/4 x 2) = 3/2 : 3/2 = 1
d)2 2/3 : (1 2/3 : 5 ) = 8/3 : (5/3 x 1/5) = 8/3 : 1/3= 8/3 x 3/1=8