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Emyfrancois24
@Emyfrancois24
May 2019
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Bonjour pourriez vous m'aider svp:
Effectuer les calculs suivants et écrire le résultat sous forme de fraction irréductible.
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thalesbah
Verified answer
Bonsoir.
Exo1:
A=21/8*(-2/7).
A=-21*2/8*7.
A=-42/56=6/8
B=1/12÷(2-3/7).
B=1/12÷(21-3)/7.
B=1/12÷18/7.
B=1/12*7/18.
B=7/216.
2) écriture scientifique.
C=49*10^35/7*10^34.
C=49/7*10^35-34.
C=7*10.
C=70.
tu fais l mm chose pour l reste.
Merci.
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Verified answer
Bonsoir.Exo1:
A=21/8*(-2/7).
A=-21*2/8*7.
A=-42/56=6/8
B=1/12÷(2-3/7).
B=1/12÷(21-3)/7.
B=1/12÷18/7.
B=1/12*7/18.
B=7/216.
2) écriture scientifique.
C=49*10^35/7*10^34.
C=49/7*10^35-34.
C=7*10.
C=70.
tu fais l mm chose pour l reste.
Merci.