calculer puis simplifier si possible A= 5x2/9 - 2x4/9 B = 3/4x3/5 + 1/2x8/10 C= 19/60 - 1/3 x 3/4 x 3/5 Merci
Mathématiques
chrisdu62800
Question
calculer puis simplifier si possible A= 5x2/9 - 2x4/9
B = 3/4x3/5 + 1/2x8/10
C= 19/60 - 1/3 x 3/4 x 3/5
Merci
B = 3/4x3/5 + 1/2x8/10
C= 19/60 - 1/3 x 3/4 x 3/5
Merci
2 Réponse
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1. Réponse telephone16
A = 5 X 2/9 -2 X 4/9
10/9 -8/9 = 2/9
B = 3/4 X 3/5 + 1/2 X 8/10
12/20 + 8/20
20/20 = 1
C = 19/60 -1/3 X 3/4 X 3/5
19/60 -3/12 X 3/5
19/60 -9/60
10/60 = 1/6 -
2. Réponse peg05
A=5*2/9-2*4/9
10/9-8/9=2/9
B=3/4*3/5+1/2*8/10
9/20+8/20=72/0=18/5=3,6
c=19/60-1/3*3/4*3/5
19/60-20/60*9/20=-1/60*9/20=-9/120=-3/40