Answered

E=4/15+7/15fois9/4 F =(2/3-8/3)+-2/7 svp les dernières exercices merci à ce qui le ferons

Sagot :

LOULAKAR

Bonsoir

E=4/15+7/15fois9/4

E = 4/15 + 9/15 x 7/4

E = 4/15 + (3 x 3)/(3 x 5) x 7/4

E = 4/15 + 3/5 x 7/4

E = 4/15 + 21/20

E = (4 x 4)/(15 x 4) + (21 x 3)/(20 x 3)

E = 16/60 + 63/60

E = 79/60

F =(2/3-8/3)+-2/7

F = (-6/3) - 2/7

F = -(2 x 7)/(1 x 7) - 2/7

F = -14/7 - 2/7

F = -16/7