1-Efetue as operações:
a)5/4 + 2/4 =
b)11/3 - 7/3 =
c)3/2 - 2/3 =
2-Calcule as expressões:
(3/2 - 2/5) + (5/4 - 2/3) =
Elianask192:
Ajuda ai
Soluções para a tarefa
Respondido por
12
a)5/4 + 2/4 =
5 + 2 7
---- ------ = -----
4 4 4
Resp.: 7/4
******************************
b)11/3 - 7/3 =
11 - 7 4
---- ---- = -----
3 3 3
R.: 4/3
*********************************
c)3/2 - 2/3 =
3 - 2 3.3 - 2.2 9 - 4 5
----- ----- = -------------- = ---------- = -----
2 3 6 6 6
R.: 5/6
***************************************
2-Calcule as expressões:
(3/2 - 2/5) + (5/4 - 2/3) =
3 - 2 5.3 - 2.2 15 - 4 11
----- ----- = --------------- = ---------- = -----
2 5 10 10 10
5 - 2 3.5 - 4.2 15 - 8 7
----- ----- = --------------- = ----------- = -----
4 3 12 12 12
11 + 7 6.11 + 5.7 66 + 35 101
---- ----- = ---------------- = ------------- = -------
10 12 60 60 60
Resp.: 101/60
*************************************
10,12: 2
5,6: 2
5,3: 3
5,1: 5
--------------
1,1 = 2.2.3.5 = 4.15 = 60
5 + 2 7
---- ------ = -----
4 4 4
Resp.: 7/4
******************************
b)11/3 - 7/3 =
11 - 7 4
---- ---- = -----
3 3 3
R.: 4/3
*********************************
c)3/2 - 2/3 =
3 - 2 3.3 - 2.2 9 - 4 5
----- ----- = -------------- = ---------- = -----
2 3 6 6 6
R.: 5/6
***************************************
2-Calcule as expressões:
(3/2 - 2/5) + (5/4 - 2/3) =
3 - 2 5.3 - 2.2 15 - 4 11
----- ----- = --------------- = ---------- = -----
2 5 10 10 10
5 - 2 3.5 - 4.2 15 - 8 7
----- ----- = --------------- = ----------- = -----
4 3 12 12 12
11 + 7 6.11 + 5.7 66 + 35 101
---- ----- = ---------------- = ------------- = -------
10 12 60 60 60
Resp.: 101/60
*************************************
10,12: 2
5,6: 2
5,3: 3
5,1: 5
--------------
1,1 = 2.2.3.5 = 4.15 = 60
Perguntas interessantes