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Mariette
@Mariette
April 2019
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Svpp aider moi a faire ces deux exo mercii !
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kikinou84
A/ 7/3*4/5 +2/15 = 28/15 +2/15=30/15 =2
b/ 19/12-3/2 * 7/3 =19/12-21/6 =19/12 -42/12 = -23/12
c/3/2+7/3*4/5-1/5 = 3/2 +28/15 -1/5 = 3/2 + 28/15 - 3/15 =3/2 +25/15 =3/2+5/3 =9/6+10/6 =19/6
d/5*3/4 -5/8 = 15/4 -5/8 = 30/8-5/8 = 25/8
e/ (4*3/2) *(2-11/5) =( 8/2 + 3/2 ) * (10/5-11/5) = 11/2*(-1/5) =-4/10=-2/5
f/ (2/3)² * (2-11/5) = 4/6 *(10/5-11/5)=4/6 * (-1/5) = -4/30 = -2/15
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kikinou84
pour deuxième exercice 1/ 1/4 *2/5 = 2/20 pour sirop et pour question 2 ) 2/20+3/4 =2/20 +15/20 = 17/20 du paquet utilisé en total
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Bonsoir svp pouvez vous m'aider a faire l'exercice 1 et 2. Merci d'avance !
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Bonsoir Svp c tres urgent aider moi ! Merci d'avance !.. (4eme)
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b/ 19/12-3/2 * 7/3 =19/12-21/6 =19/12 -42/12 = -23/12
c/3/2+7/3*4/5-1/5 = 3/2 +28/15 -1/5 = 3/2 + 28/15 - 3/15 =3/2 +25/15 =3/2+5/3 =9/6+10/6 =19/6
d/5*3/4 -5/8 = 15/4 -5/8 = 30/8-5/8 = 25/8
e/ (4*3/2) *(2-11/5) =( 8/2 + 3/2 ) * (10/5-11/5) = 11/2*(-1/5) =-4/10=-2/5
f/ (2/3)² * (2-11/5) = 4/6 *(10/5-11/5)=4/6 * (-1/5) = -4/30 = -2/15