Efetue
1/5 + 2/7 - 3/8
5/6 - 7/8 + 1/4
3/4 . 1/7
2/3 . 4/9 . 9/8
2/7 : 3/4
9/6 : 3/4 : 1/2
Soluções para a tarefa
Respondido por
3
1/5 + 2/7 - 3/8 =
MMC = 280
56 + 80 - 105 31
------------------ = -----
280 280
---------------------------------------------------------------------------------
5/6 - 7/8 + 1/4 =
MMC = 24
20 - 21 + 6 5
---------------- = ----
24 24
---------------------------------------------------------------------------------
3/4 . 1/7 = 3/28
---------------------------------------------------------------------------------
2/3 . 4/9 . 9/8 = 72/216 : 72 = 1/3
---------------------------------------------------------------------------------
2/7 : 3/4 =2/7 . 4/3 = 8/21
---------------------------------------------------------------------------------
9/6 : 3/4 : 1/2 = 9/6. 4/3 . 2 = 72/18= 4
---------------------------------------------------------------------------------
MMC = 280
56 + 80 - 105 31
------------------ = -----
280 280
---------------------------------------------------------------------------------
5/6 - 7/8 + 1/4 =
MMC = 24
20 - 21 + 6 5
---------------- = ----
24 24
---------------------------------------------------------------------------------
3/4 . 1/7 = 3/28
---------------------------------------------------------------------------------
2/3 . 4/9 . 9/8 = 72/216 : 72 = 1/3
---------------------------------------------------------------------------------
2/7 : 3/4 =2/7 . 4/3 = 8/21
---------------------------------------------------------------------------------
9/6 : 3/4 : 1/2 = 9/6. 4/3 . 2 = 72/18= 4
---------------------------------------------------------------------------------
Respondido por
1
Resolva: 6/7 - 2/7 - 1/7=
Alguém sabe como faz?
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