MERIEMRABIA20
Answered

bonjour j'aimerais que vous m aidier avec mon devoir mercie A=-5/8+7/12 B=-14/12×18/35 C=1/1-1/5÷6 D=1/3÷(2-3/7)​

Sagot :

LOULAKAR

Réponse :

Explications étape par étape

Bonjour

A=-5/8+7/12

A = (-5 x 3)/(8 x 3) + (7 x 2)/(2 x 12)

A = -15/24 + 14/24

A = -1/24

B=-14/12×18/35

B = -(7 x 2)/(6 x 2) x 18/35

B = -7/6 x 18/35

B = -7/35 x 18/6

B = -7/(7 x 5) x (3 x 6)/6

B = -1/5 x 3

B = -3/5

C=1/1-1/5÷6

C = 1/(1 - 1/5)/6

C = 1/(5/5 - 1/5)/6

C = 1/(4/5)/6

C = 1/(4/5 x 1/6)

C = 1/(4/30)

C = 30/4

C = 15/2

D=1/3÷(2-3/7)​

D = 1/3 / (14/7 - 3/7)

D = 1/3 / (11/7)

D = 1/3 x 7/11

D = 7/33