Bonjour

Effectuer les calculs suivants. Les résultats seront écrits sous la forme d'une fraction ''la plus simple possible ''.​

F = 21/30 : 7/6

F = 21/30 x 6/7

F = 126/210

F = (42 x 3) / (42 x 5)

F = 3/5

G = 45/56 : (- 36/28)

G = 45/56 x (- 28/36)

G = - 1 260/2 016

G = (262 x - 5) / (262 x 8)

G = - 5/8

H = 15 : (1/4 - 2/3)

H = 15 : [(1 x 3) / (4 x 3) - (2 x 4) / (3 x 4)]

H = 15 : (3/12 - 8/12)

H = 15 : - 5/12

H = 15 x - 12/5

H = - 180/5

H = (5 x - 36) / (5 x 1)

H = - 36

I = (5/6 + 1 - 7/30) : (5/6 - 1 + 7/30)

I = [(5 x 5)  /(6 x 5) + (1 x 30) / (1 x 30) - 7/30] : [(5 x 5) / (6 x 5) - (1 x 30) / (1 x 30 + 7/30]

I = (25/30 + 30/30 - 7/30) : (25/30 - 30/30 + 7/30)

I = 48/30 : 2/30

I = 48/30 x 30/2

I = 1 440/60

I = (60 x 24) / (60 x 1)

I = 24.