f) 16 9 5
___ + __ - __
2 1 7 6
1
g) 1 + _
3
_______
3
h)7 9 4
__+ __ +__
9 8 5
___________
2 3
___ + ___
7 28
2 4 9 3 7 5
i) ( 1 + _ + _ + _ ) ÷ ( _ + _ . _ )
3 5 4 4 8 3
ME AJUDEM!!!!!!!!!!!
Soluções para a tarefa
Respondido por
1
F)
16 9 5 2.16 + 6.9 - 7.5
------ + ----- - ------ = ------------------------
21 7 6 42
32 + 54 - 35 = 32 - 35 + 54 = - 3 + 54
----------------- ------------------- -------------
42 42 42
51 (:3) = 17
-------- ------
42 (:3) 14
21,7,6: 2
21,7,3: 3
7,7,1: 7
-------------------
1,1,1 = 2.3.7 = 6.7 = 42
Resp.: 17/14
******************************************************
1
g) 1 + ---- = 3.1 + 1 = 3 + 1 : 3
3 ------------- ----------
_______ 3 3
3 --------------
3
4 . 1 = 4
------ ----- ------
3 3 9
Resp.: 4/9
**********************************************
h)
7 9 4 40.7 + 45.9 + 72.4
----- + ----- + ------ ----------------------------
9 8 5 360
--------------------------- = -------------------------------
2 3 4.2 + 1.3
------ + ------ ----------------
7 28 28
280 + 405 + 288 = 973
------------------------- --------
360 360
--------------------------- -----------
8 + 3 11
---------- -------
28 28
973 . 28 = 973 . 28 (:4)
------- ------ -------- ------
360 11 11 360 (:4)
973 . 7 = 6811
----- ----- ---------
11 90 990
Resp.: 6811/990
************************************
mmc (28,7)
28,7: 2
14,7: 2
7,7: 7
-------------
1,1 = 2.2.7 = 28
mmc (9,8,5)
9,8,5: 2
9,4,5: 2
9,2,5: 2
9,1,5: 3
3,1,5: 3
1,1,5: 5
-------------------
1,1,1 = 2.2.2.3.3.5 = 8.9.5 = 72.5 = 360
******************************************
2 4 9 3 7 5
i) ( 1 + _ + _ + _ ) ÷ ( _ + _ . _ )
3 5 4 4 8 3
(a) (b)
Parte (a):
1 + 2 + 4 + 9 = 1.60 + 20.2 + 12.4 + 15.9
----- ---- ----- -------------------------------------
3 5 4 60
60 + 40 + 48 + 135 = 283
--------------------------- --------
60 60
Parte (b)
3 + 7 . 5
------ ---- ----
4 8 3
3 + 35 6.3 + 1.35 = 18 + 35 53
----- ------ = ---------------- ------------ = ------
4 24 24 24 24
a : b = 283 : 53
-------- ------
60 24
283 . 24 = 283 . 24 (:4)
------- ------- ------- ------
60 53 53 60 (:4)
283 . 6 = 1698
------- ------ ---------
53 15 795
**************************************
mmc (3,5,4)
3,5,4: 2
3,5,2: 2
3,5,1: 3
1,5,1: 5
1,1,1 = 2.2.3.5 = 4.15 = 60
Resp.: 1698/795
16 9 5 2.16 + 6.9 - 7.5
------ + ----- - ------ = ------------------------
21 7 6 42
32 + 54 - 35 = 32 - 35 + 54 = - 3 + 54
----------------- ------------------- -------------
42 42 42
51 (:3) = 17
-------- ------
42 (:3) 14
21,7,6: 2
21,7,3: 3
7,7,1: 7
-------------------
1,1,1 = 2.3.7 = 6.7 = 42
Resp.: 17/14
******************************************************
1
g) 1 + ---- = 3.1 + 1 = 3 + 1 : 3
3 ------------- ----------
_______ 3 3
3 --------------
3
4 . 1 = 4
------ ----- ------
3 3 9
Resp.: 4/9
**********************************************
h)
7 9 4 40.7 + 45.9 + 72.4
----- + ----- + ------ ----------------------------
9 8 5 360
--------------------------- = -------------------------------
2 3 4.2 + 1.3
------ + ------ ----------------
7 28 28
280 + 405 + 288 = 973
------------------------- --------
360 360
--------------------------- -----------
8 + 3 11
---------- -------
28 28
973 . 28 = 973 . 28 (:4)
------- ------ -------- ------
360 11 11 360 (:4)
973 . 7 = 6811
----- ----- ---------
11 90 990
Resp.: 6811/990
************************************
mmc (28,7)
28,7: 2
14,7: 2
7,7: 7
-------------
1,1 = 2.2.7 = 28
mmc (9,8,5)
9,8,5: 2
9,4,5: 2
9,2,5: 2
9,1,5: 3
3,1,5: 3
1,1,5: 5
-------------------
1,1,1 = 2.2.2.3.3.5 = 8.9.5 = 72.5 = 360
******************************************
2 4 9 3 7 5
i) ( 1 + _ + _ + _ ) ÷ ( _ + _ . _ )
3 5 4 4 8 3
(a) (b)
Parte (a):
1 + 2 + 4 + 9 = 1.60 + 20.2 + 12.4 + 15.9
----- ---- ----- -------------------------------------
3 5 4 60
60 + 40 + 48 + 135 = 283
--------------------------- --------
60 60
Parte (b)
3 + 7 . 5
------ ---- ----
4 8 3
3 + 35 6.3 + 1.35 = 18 + 35 53
----- ------ = ---------------- ------------ = ------
4 24 24 24 24
a : b = 283 : 53
-------- ------
60 24
283 . 24 = 283 . 24 (:4)
------- ------- ------- ------
60 53 53 60 (:4)
283 . 6 = 1698
------- ------ ---------
53 15 795
**************************************
mmc (3,5,4)
3,5,4: 2
3,5,2: 2
3,5,1: 3
1,5,1: 5
1,1,1 = 2.2.3.5 = 4.15 = 60
Resp.: 1698/795
meurilly:
Parabéns Paulo correta !
Perguntas interessantes
Matemática,
9 meses atrás
Matemática,
9 meses atrás
Ed. Física,
9 meses atrás
Matemática,
1 ano atrás
Matemática,
1 ano atrás
Matemática,
1 ano atrás
Matemática,
1 ano atrás