a) (-4/5).(35/16)+5/4=
b) (10/3):(5/9)-8/7=
c) (4-1/3):(4+1/2) =
d) (2/4-1/4).(1/3-1): (-2-4/5)=
e) (-3-1/3):[(-6/5):(-22/25)]+1/5=
f)(-0,2-2/3)+(-0,3+1/2).(-2+1/3)=
g)(-3/5+1/2):[(-2/3).(+15/8)]-1/2+2/3=
Usuário anônimo:
gigante hein.....
Soluções para a tarefa
Respondido por
10
a)
- 4 . 35 + 5
5 16 4
35 . ( - 4) + 5
5 16 4
- 1 . 7 + 5 = - 7 + 5 = - 2 = - 1
1 4 4 4 4 2
*************************************************
b) (10/3):(5/9)-8/7=
10 . 9 - 8
3 5 7
10 . 9 - 8
5 3 7
2 . 3 - 8
1 1 7
6 - 8
7
42 - 8 = 34
7 7
________________________________
c) (4-1/3):(4+1/2) =
(4 - 1 ) : ( 4 + 1)
( 3 ( 2 )
12 - 1 : 8 + 1
3 2
11 : 9
3 2
11 . 2 = 22
3 9 27
************************************************
d) (2/4-1/4).(1/3-1): (-2-4/5)=
2 - 1 . 1 - 1 : - 2 - 4
4 4 3 5
1 . 1 - 3 : - 10 - 4
4 3 5
1 . ( - 2) : - 14
4 3 5
- 2 . (- 5) = 1 . 5 = 5
12 14 6 14 84
******************************************************************
e) (-3-1/3):[(-6/5):(-22/25)]+1/5=
(- 3 - 1 ) : [ - 6 : ( - 22)] + 1
3 5 25 5
- 9 - 1 : [ - 6 . (- 25) ] + 1
3 5 22 5
- 10 : [ - 3 . ( - 5) ] + 1
3 1 11 5
- 10 : 15 + 1
3 11 5
- 10 . 11 + 1
3 15 5
- 2 . 11 + 1
3 3 5
- 22 + 1
9 5
- 110 + 9 = - 101
45 45
-----------------------------------------------------
f)(-0,2-2/3)+(-0,3+1/2).(-2+1/3)=
(- 2 - 2) + ( - 3 + 1 ) . ( - 2 + 1)
10 3 10 2 3
(- 1 - 2) + ( - 6 + 10) . ( - 6 + 1 )
5 3 20 3
( - 3 - 10) + [( 4 . (- 5 )]
15 20 3
- 13 + - 20
15 60
- 13 - 1 = - 13 - 5 = - 18 (:3) = - 6
15 3 15 15 (:3) 5
***********************************************************************
g)(-3/5+1/2):[(-2/3).(+15/8)]-1/2+2/3=
(- 3 + 1 ) : [ - 2 . 15 ] - 1 + 2
5 2 3 8 2 3
(- 6 + 5 ) : [ - 1 . 5 ] - 1 + 2
10 1 4 2 3
- 1 : - 5 - 1 + 2
10 4 2 3
- 1 . (- 4) - 1 + 2
10 5 2 3
4 - 1 + 2
50 2 3
2 - 1 + 2
25 2 3
12 - 75 + 100 = 112 - 75 = 37
150 150 150
********************************************
mmc = 150
25, 2,3: 2
25,1,3: 3
25,1,1: 5
5,1,1: 5
1,1,1 = 2.3.5.5 = 6.25 = 150
- 4 . 35 + 5
5 16 4
35 . ( - 4) + 5
5 16 4
- 1 . 7 + 5 = - 7 + 5 = - 2 = - 1
1 4 4 4 4 2
*************************************************
b) (10/3):(5/9)-8/7=
10 . 9 - 8
3 5 7
10 . 9 - 8
5 3 7
2 . 3 - 8
1 1 7
6 - 8
7
42 - 8 = 34
7 7
________________________________
c) (4-1/3):(4+1/2) =
(4 - 1 ) : ( 4 + 1)
( 3 ( 2 )
12 - 1 : 8 + 1
3 2
11 : 9
3 2
11 . 2 = 22
3 9 27
************************************************
d) (2/4-1/4).(1/3-1): (-2-4/5)=
2 - 1 . 1 - 1 : - 2 - 4
4 4 3 5
1 . 1 - 3 : - 10 - 4
4 3 5
1 . ( - 2) : - 14
4 3 5
- 2 . (- 5) = 1 . 5 = 5
12 14 6 14 84
******************************************************************
e) (-3-1/3):[(-6/5):(-22/25)]+1/5=
(- 3 - 1 ) : [ - 6 : ( - 22)] + 1
3 5 25 5
- 9 - 1 : [ - 6 . (- 25) ] + 1
3 5 22 5
- 10 : [ - 3 . ( - 5) ] + 1
3 1 11 5
- 10 : 15 + 1
3 11 5
- 10 . 11 + 1
3 15 5
- 2 . 11 + 1
3 3 5
- 22 + 1
9 5
- 110 + 9 = - 101
45 45
-----------------------------------------------------
f)(-0,2-2/3)+(-0,3+1/2).(-2+1/3)=
(- 2 - 2) + ( - 3 + 1 ) . ( - 2 + 1)
10 3 10 2 3
(- 1 - 2) + ( - 6 + 10) . ( - 6 + 1 )
5 3 20 3
( - 3 - 10) + [( 4 . (- 5 )]
15 20 3
- 13 + - 20
15 60
- 13 - 1 = - 13 - 5 = - 18 (:3) = - 6
15 3 15 15 (:3) 5
***********************************************************************
g)(-3/5+1/2):[(-2/3).(+15/8)]-1/2+2/3=
(- 3 + 1 ) : [ - 2 . 15 ] - 1 + 2
5 2 3 8 2 3
(- 6 + 5 ) : [ - 1 . 5 ] - 1 + 2
10 1 4 2 3
- 1 : - 5 - 1 + 2
10 4 2 3
- 1 . (- 4) - 1 + 2
10 5 2 3
4 - 1 + 2
50 2 3
2 - 1 + 2
25 2 3
12 - 75 + 100 = 112 - 75 = 37
150 150 150
********************************************
mmc = 150
25, 2,3: 2
25,1,3: 3
25,1,1: 5
5,1,1: 5
1,1,1 = 2.3.5.5 = 6.25 = 150
as contas estão corretas. apenas a formatação ficou desconfigurada em alguns detalhes....
ok, bjs
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