Treść zadania
Autor: mateusz19960542 Dodano: 5.2.2012 (10:59)
UŁAMki
-6*2 7/15-(-5 1/2)*7/9+ 1 7/48*(-2 2/11)-2/5* 6 5/9
-2:3/5-(-3/5):2-1 1/2 :6-6:9-1 1/2)
5 1/2:(-1 1/2 - 2/5)+(1/6-3/4):19/24
(-5/7 * 2 1/3* 5/6-1):1-(-7/8)*(-1 3/5)* 3/14
28 4/5:(-13 5/7)+(-6 3/5):3/2 przez (-1 11/16):(-2 1/4)
(-4 5/7 - 1 11/14)* 4 2/3 +(3 2/9- 1 5/6)* 18/25 przez -2 3/4 + 1/2
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sonar 5.2.2012 (13:54)
-6*2 i 7/15-(-5 i 1/2)*7/9+ 1 i 7/48*(-2 i 2/11)-2/5* 6 i 5/9=
= - 6 * 37/15 - ( -11/2) * 7/9 + 55/48 * (-24/22)- 2/5 * 59/9 =
( skracam 6 z 15 , 55 z 22 oraz 48 z 24)
= -2* 37/5 - ( -77/18) + 5/2 * (-1/2) - 118/45=
= - 74/5 + 77/18 - 5/2 - 118/45=
= - 14 i 4/5 + 4 i 5/18 - 2 i 1/2 - 2 i 28/45 =
(sprowadzam ułamki do wspólnego mianownika -> 90)
= - 14 i 72/90 + 4 i 25/90 - 2 i 45/90 - 2 i 56/90=
= - 10 i 47/90 - 2 i 45/90 - 2 i 56/90=
= - 12 i 92/90 - 2 i 56/90=
= - 13 i 2/90 - 2 i 56/90=
= - 15 i 58/90 =
= - 15 i 29/45
-2:3/5-(-3/5):2-1 i 1/2 :6-6:9-1 i 1/2)=
= -2 * 5/3 - ( -3/5) * 1/2 - 3/2 * 1/6 - 6/9 - 1 i 1/2 = (skracam 3 z 6)
= -10/3 + 3/10 - 1/2 * 1/2 - 2/3 - 1 i 1/2 =
= - 3 i 1/3 + 3/10 - 1/4 - 2/3 - 1 i 1/2 =
(sprowadzam ułamki do wspólnego mianownika -> 60)
= - 3 i 20/60 + 18/60 - 15/60 - 40/60 - 1 i 30/60 =
= - 3 i 2/60 - 15/60 - 40/60 - 1 i 30/60 =
= - 3 i 17/60 - 40/60 - 1 i 30/60 =
= - 3 i 57/60 - 1 i 30/60 =
= - 4 i 87/60 =
= - 5 i 27/60=
= - 5 i 9/20
5 i 1/2:(-1 i 1/2 - 2/5)+(1/6-3/4):19/24=
= 5 i 1/2 : ( - 1 i 5/10 - 4/10) + ( 2/12 - 9/12) : 19/24=
= 11/2 : ( - 1 i 9/10) + ( - 7/12) : 19/24=
= 11/2 : ( - 19/10) + ( - 7/12) * 24/19 = ( skracam 12 z 24)
= 11/2 * ( -10/19) + ( -7/1) * 2/19 = ( skracam 2 z 10)
= 11/1 * (-5/19) + ( - 14/19) =
= - 55/19 - 14/19=
= - 69/19 =
= - 3 i 12/19
(-5/7 * 2 i 1/3* 5/6-1):1-(-7/8)*(-1 i 3/5)* 3/14=
= (-5/7 * 7/2 * 5/6 -1) : 1 - (-7/8) * (- 8/5) * 3/14=
(skracam 7 z 7 oraz 8 z 8)
= ( -5/1 * 1/2 * 5/6 -1) : 1 - (-7/1) * (-1/5) * 3/14=
= (- 25/12 - 1): 1 - (- 7/5) * 3/14= (skracam 7 z 14)
= ( - 2 i 1/12 -1) : 1 - (-1/5) * 3/2=
= - 3 i 1/2 : 1 - (- 3/10)=
= - 3 i 1/2 + 3/10 =
= - 3 i 5/10 + 3/10=
= - 3 i 2/10 =
= - 3 i 1/5
28 i 4/5:(-13 i 5/7)+(-6 i 3/5):3/2
-------------------------------------- =
(-1 i 11/16):(-2 i 1/4)
"""""144/5:(- 96/7) + (-33/5):3/2
= ------------------------------------------------ =
""""""""(- 27/16):(- 9/4)
"""""144/5 * (- 7/96) + (-33/5) * 2/3
= ------------------------------------------------ =
""""""""(- 27/16) * (- 4/9)
""""" 3/5 * (- 7/2) + (-11/5) * 2/1
= ------------------------------------------------ =
""""""""(- 3/4 ) * (- 1/1)
""""" - 21/10 + (-22/5)
= ------------------------- =
"""""""" 3/4
""""" - 2 i 1/10 - 4 i 2/5
= ------------------------- =
"""""""" 3/4
""""" - 2 i 1/10 - 4 i 8/10
= ------------------------- =
"""""""" 3/4
= - 6 i 9/10 : 3/4=
= - 69/10 * 4/3 = (skracam 69 z 3 oraz 10 z 4)
= - 23/5 * 2/1=
= - 46/5=
= - 9 i 1/5
(-4 i 5/7 - 1 i 11/14)* 4 i 2/3 +(3 i 2/9- 1 i 5/6)* 18/25
------------------------------------------------------------------------ =
"""""""""""""-2 i 3/4 + 1/2
""""(-4 i 10/14 - 1 i 11/14)* 14/3 +(3 i 4/18- 1 i 15/18)* 18/25
= ------------------------------------------------------------------------ =
"""""""""""""-2 i 3/4 + 2/4
""""(-5 i 21/14)* 14/3 +(3 i 4/18- 1 i 15/18)* 18/25
= ------------------------------------------------------------------------ =
"""""""""""""-2 i 1/4
""""(-91/14)* 14/3 +(2 i 22/18- 1 i 15/18)* 18/25
= ------------------------------------------------------------------------ =
"""""""""""""-2 i 1/4
""""(-91/1)* 1/3 + 1 i 7/18 * 18/25
= ----------------------------------------- =
"""""""""""""-2 i 1/4
"""" -91/3 + 25/18 * 18/25
= ----------------------------------------- =
"""""""""""""-2 i 1/4
"""" -30 i 1/3 + 1/1 * 1/1
= ----------------------------------------- =
"""""""""""""-2 i 1/4
"""" -30 i 1/3 + 1/1
= ---------------------- =
"""""""""""""-2 i 1/4
"""" -30 i 1/3 + 1
= ---------------------- =
"""""""""-2 i 1/4
= - 29 i 1/3 : ( - 2 i 1/4) =
= - 88/3 : ( - 9/4) =
= - 88/3 * (-4/9)=
= 352/27=
= 13 i 1/27
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