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AnneFriends
@AnneFriends
December 2019
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Como resolver a expressao: 1÷(1-1/5) ÷ 3÷(1+1/5)?( me ajudem, e urgente!)
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Milli88
1÷(1-1/5)÷3÷(1+1/5)
1:(5-1/5)÷3÷(5+1/5)
1÷4/5÷3÷6/5(multiplicação cruzada)
5/4÷15/6(multiplicação cruzada)
30/60 (simplifica por 15)
2/4(simplifica por 2)
1/2
1 votes
Thanks 4
AnneFriends
obrigada, ajudou muito!
Milli88
De nada
albertrieben
Boa tarde Anne
1 - 1/5 = 5/5 - 1/5 = 4/5
1/(4/5) = 1*(5/4) = 5/4
(5/4)/3 = 5/12
1 + 1/5 = 6/5
(5/12)/(6/5) = (5/12)*(5/6) =
25/72
0 votes
Thanks 2
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Lista de comentários
1:(5-1/5)÷3÷(5+1/5)
1÷4/5÷3÷6/5(multiplicação cruzada)
5/4÷15/6(multiplicação cruzada)
30/60 (simplifica por 15)
2/4(simplifica por 2)
1/2
1 - 1/5 = 5/5 - 1/5 = 4/5
1/(4/5) = 1*(5/4) = 5/4
(5/4)/3 = 5/12
1 + 1/5 = 6/5
(5/12)/(6/5) = (5/12)*(5/6) = 25/72