1-) Arme e efetue as seguintes expressões:
A) 2/3 - 3 + 11/2
B) 1 - 4/5 - 2/5
C) - 1 + 3/10 - 1,2
D) 4 - 13/10 + 2,1
E) 3/10 + 1,3 - 2
F) 1/2 + (- 0,5 )
G) - ( - 2 - 1/5)
H) 1 - (- 3/4 + 1/6)
I) - 1/2 + ( - 3 + 3/5)
J) 12/5 - ( - 2 - 0,1)
K) ( 4 - 3/2) + ( - 1/2 - 4/3)
L) - (1 - 3/5) - (0,3 - 1/4)
M) 1 - [ 1/2 - ( 1/4 - 1/8 ) ]
ME AJUDEM POR FAVOR !!!
GRATA: JULYA
Soluções para a tarefa
Respondido por
0
A) 2/3 - 3 + 11/2 = .....mmc(2,3)=6
4/6 - 18/6 + 33/6 = -14/6 + 33/6 = 19/6
B) 1 - 4/5 - 2/5 =
1 - 2/5 = 5/5 - 2/5 = 3/5
C) - 1 + 3/10 - 1,2 =
-1 + 0,3 - 1,2 =
- 0,7 - 1,2 = - 1,9
D) 4 - 13/10 + 2,1 =
4 - 1,3 + 2,1 =
2,7 + 2,1 = 4,8
E) 3/10 + 1,3 - 2 =
0,3 + 1,3 - 2 =
1,6 - 2 = - 0,4
F) 1/2 + (- 0,5 ) =
0,5 - 0,5 = 0
G) - ( - 2 - 1/5) =
2 + 1/5 = 11/5
H) 1 - (- 3/4 + 1/6) =
1 + 3/4 - 1/6 = .... mmc(4,6) = 12
12/12 + 9/12 - 2/12 = 19/12
I) - 1/2 + ( - 3 + 3/5) =
- 1/2 - 3 + 3/5 = .....MMC(2,5)=10
-5/10 - 30/10 + 6/10 =
- 35/10 + 6/10 = - 29/10
J) 12/5 - ( - 2 - 0,1) =
12/5 + 2 + 1/10 = ... mmc(5,10) = 50
120/50 + 100/50 + 5/50 = 225/50 = 45/10 = 9/2
K) ( 4 - 3/2) + ( - 1/2 - 4/3) =
5/2 + (-11/6) =
5/2 - 11/6 = ....mmc(2,6)=6
15/6 - 11/6 = 4/6 = 2/3
L) - (1 - 3/5) - (0,3 - 1/4) =
- ( 2/5) - (3/10 - 1/4) =
- 2/5 - 3/10 + 1/4 = .... mmc(4,5,10) =20
- 8/20 - 6/20 + 5/20 =
- 14/20 + 5/20 = - 9/20
M) 1 - [ 1/2 - ( 1/4 - 1/8 ) ] =
1- [ 1/2 - 1/8 ] =
1- 3/8 = 5/8
4/6 - 18/6 + 33/6 = -14/6 + 33/6 = 19/6
B) 1 - 4/5 - 2/5 =
1 - 2/5 = 5/5 - 2/5 = 3/5
C) - 1 + 3/10 - 1,2 =
-1 + 0,3 - 1,2 =
- 0,7 - 1,2 = - 1,9
D) 4 - 13/10 + 2,1 =
4 - 1,3 + 2,1 =
2,7 + 2,1 = 4,8
E) 3/10 + 1,3 - 2 =
0,3 + 1,3 - 2 =
1,6 - 2 = - 0,4
F) 1/2 + (- 0,5 ) =
0,5 - 0,5 = 0
G) - ( - 2 - 1/5) =
2 + 1/5 = 11/5
H) 1 - (- 3/4 + 1/6) =
1 + 3/4 - 1/6 = .... mmc(4,6) = 12
12/12 + 9/12 - 2/12 = 19/12
I) - 1/2 + ( - 3 + 3/5) =
- 1/2 - 3 + 3/5 = .....MMC(2,5)=10
-5/10 - 30/10 + 6/10 =
- 35/10 + 6/10 = - 29/10
J) 12/5 - ( - 2 - 0,1) =
12/5 + 2 + 1/10 = ... mmc(5,10) = 50
120/50 + 100/50 + 5/50 = 225/50 = 45/10 = 9/2
K) ( 4 - 3/2) + ( - 1/2 - 4/3) =
5/2 + (-11/6) =
5/2 - 11/6 = ....mmc(2,6)=6
15/6 - 11/6 = 4/6 = 2/3
L) - (1 - 3/5) - (0,3 - 1/4) =
- ( 2/5) - (3/10 - 1/4) =
- 2/5 - 3/10 + 1/4 = .... mmc(4,5,10) =20
- 8/20 - 6/20 + 5/20 =
- 14/20 + 5/20 = - 9/20
M) 1 - [ 1/2 - ( 1/4 - 1/8 ) ] =
1- [ 1/2 - 1/8 ] =
1- 3/8 = 5/8
Perguntas interessantes