Réponse :
bonsoir
Explications étape par étape
F=3/2x(5-6/7)
5-6/7=35/7-6/7=29/7
3/2x29/7=87/14
A=1/3+2/3÷5/7
1/3+2/3=1x7/5=7/5
C=7/-3x5/7÷-6/7x11/-3=-5/3x7/22=-35/66
Bonsoir,
Calculer:
F= 3/2 x (5x7-6)/7= 3/2 x(35-6)/7= 3/2 x 29/7= 58/14= (58:2)/(14:2)= 29/7
A= 3/3 : 5/7= 1 x 7/5= 7/5
C= (-7x5)/(3x7) : (-6x11)/(-3x7)= -35/21 : -66/-21= -35/21 x -21/ -66= - 35/66 tu barres les 21 <=> -35/1 x -1/ -66 <=> -35/66
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Réponse :
bonsoir
Explications étape par étape
F=3/2x(5-6/7)
5-6/7=35/7-6/7=29/7
3/2x29/7=87/14
A=1/3+2/3÷5/7
1/3+2/3=1x7/5=7/5
C=7/-3x5/7÷-6/7x11/-3=-5/3x7/22=-35/66
Bonsoir,
Calculer:
F= 3/2 x (5x7-6)/7= 3/2 x(35-6)/7= 3/2 x 29/7= 58/14= (58:2)/(14:2)= 29/7
A= 3/3 : 5/7= 1 x 7/5= 7/5
C= (-7x5)/(3x7) : (-6x11)/(-3x7)= -35/21 : -66/-21= -35/21 x -21/ -66= - 35/66 tu barres les 21 <=> -35/1 x -1/ -66 <=> -35/66