resolva a expressão : 2/3+(4/5-1/4)
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2/3 + 4/5 - 1/4 =
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 • 3 • 5
= 4 • 15 = 60
(60 ÷3)•2=20•2=40
(60÷5)•4=12•4=48
(60÷4)•(-1)=15•(-1)= -15
40/60 + 48/60 - 15/60 =
= (40 + 48 - 15)/60= 73/60
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 • 3 • 5
= 4 • 15 = 60
(60 ÷3)•2=20•2=40
(60÷5)•4=12•4=48
(60÷4)•(-1)=15•(-1)= -15
40/60 + 48/60 - 15/60 =
= (40 + 48 - 15)/60= 73/60
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