Treść zadania

Najlepsze rozwiązanie

• 

  1 0

  sonar 10.3.2011 (22:40)

  Zad 1.
  a)
  3/7*5/8 = 15/56
  
  b)
  4/9:3*2 =
  = 4/9 * 1/3 * 2=
  = 4/27 * 2=
  = 8/27
  
  c)
  11*1/6:4 =
  = 11/6 * 1/4 =
  = 11/24
  
  d)
  5/11:6*5=
  = 5/11 * 1/6 * 5=
  = 5/66 * 5=
  = 25/66
  
  
  zad2.
  a)
  3/8*6:4=
  = 3/8 * 6 : 4=
  = 18/8 * 1/4= (skracam 18 z 8)
  = 9/8 * 1/2=
  = 9/16
  
  
  b)
  2/5:4*7=
  = 2/5 * 1/4 * 7=
  = 2/20 * 7=
  = 14/20=
  = 7/10
  
  
  c)
  18*5/12 = (skracam 18 z 12)
  = 3 * 5/2=
  = 15/2=
  = 7 i 1/2
  
  
  d)
  1 i 1/9*3:11 =
  = 10/9 *3 : 11= (skracam 9 z 3)
  = 10/3 * 1 : 11=
  = 10/3 * 1/11=
  = 10/33
  
  
  e)
  2 i 4/5:7*8=
  = 14/5 * 1/7 * 8= (skracam 14 z 7 )
  = 2/5 * 1/1 * 8=
  = 2/5 * 8 = ( skracam 2 z 8)
  = 1/5 * 4=
  = 4/5
  
  
  f)
  6*3 i 1/3:5 =
  = 6 * 10/3 : 5= ( skracam 6 z 3)
  = 2 * 10/1 : 5=
  = 20/1 * 1/5= (skracam 20 z 5)
  = 4/1 * 1/1=
  = 4/1=
  = 4

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