Bonjour pouvez vous m'aider sur un devoir de fraction j'ai du mal MERCI B=3-5/4X10/3 C=3-5/4:10/3 D=(3-5/4)X10/3 E=4/5-1/2diviser par -2+8/7

bonjour

B = 3 - 5/4 * 10/3

B = 3 - 50/12

B = 36/12 - 50/12

B = - 14/12 = - 7/6

C = 3 - 5/4 : 10/3

C = 3 - 5/4 * 3/10

C = 3 - 15/40

C = 120/40 - 15/40

C = 105/40 = 21/8

D = ( 3 - 5/4) * 10/3

D = ( 12/4 - 5/4 ) * 10/3

D = 7/4 * 10/3

D = 70/12 =  35/6

E = 4/5 - 1/2 :  ( - 2 + 8/7 )

E = 4/5 - 1/2 : ( - 14/7 + 8/7 )

E = 4/5 - 1/2 : - 6/7

E = 4/5 - 1/2 * - 7/6

E = 4/5 + 7/12

E = 48/60 + 35/60

E = 83/60