5eme Ex.54.p.70 A=17/18+3x1/6= B=14/11-2/11x5 C=1-(5/8-1/4) D=3/4x16/9-10/6x1/6
Mathématiques
elisagrée
Question
5eme
Ex.54.p.70
A=17/18+3x1/6=
B=14/11-2/11x5
C=1-(5/8-1/4)
D=3/4x16/9-10/6x1/6
1 Réponse
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1. Réponse charlotte49
A= 17/18 + 3x1/6
A= 17/18 + 9/18
A= 27/18
A = 3/2
B= 14/11 - 2/11x5
B= 14/11-10/11
B= 4/11
C= 1-(5/8 - 1/4)
C=1- ( 5/8-2/8)
C= 1-3/8
C= 8/8 - 3/8
C=5/8
D= ( 3/4 x16/9) -(10/6x1/6)
D= (3x4x4 / 4x3x3) - ( 2x5x1 / 2x18 )
D= 4/3 - 5/18
D= 24/18 - 5/18
D= 19/18