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azerty9312
@azerty9312
June 2021
1
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Fractions. aidez moi. svp. il ny en a pas bezucoup.
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winner123
Verified answer
Bonjour
A = 11/3 - 8/3 : ( - 16/5)
A = 11/3 - 8/3 x - 5/16
A = 11/3 + 40/48
A = 176/48 + 40/48 = 216/48 =
9/2
B = (1 -3/2 +9/7) : (5/4 -1/3)
B = ( 14/14 - 21/14 +18/14) : ( 15/12 -4/12)
B = 11/14 : 11/12
B = 11/14 x 12/11
B = 12/14 =
6/7
C = 2 x 10³ x 5 x (10⁻⁵)² sur 2 +18
C = 10 x 10³x 10⁻¹° sur 20
C = 0,5 x 10⁻⁷
C = 5 x 10⁻⁶
D = 7 x 10⁻³ sur 63 x 10⁻⁵
D = 0.1111 x 10 ²
D = 1.1 x 10
2 votes
Thanks 1
azerty9312
MERCI BEAUCOUP !!la D est-elle sous forme de fraction irréductible?
winner123
ce n'est pas une fraction, c'est une écriture scientifique
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Verified answer
BonjourA = 11/3 - 8/3 : ( - 16/5)
A = 11/3 - 8/3 x - 5/16
A = 11/3 + 40/48
A = 176/48 + 40/48 = 216/48 = 9/2
B = (1 -3/2 +9/7) : (5/4 -1/3)
B = ( 14/14 - 21/14 +18/14) : ( 15/12 -4/12)
B = 11/14 : 11/12
B = 11/14 x 12/11
B = 12/14 = 6/7
C = 2 x 10³ x 5 x (10⁻⁵)² sur 2 +18
C = 10 x 10³x 10⁻¹° sur 20
C = 0,5 x 10⁻⁷
C = 5 x 10⁻⁶
D = 7 x 10⁻³ sur 63 x 10⁻⁵
D = 0.1111 x 10 ²
D = 1.1 x 10