Bonjour qui peu m aider en math 4 eme merci beaucoup Calcule

Bonjour

G = (1/5 - 3/10) - (1/6 - 1/2)

G = [(1 x 2) / (5 x 2) - 3/10] - [1/6 - (1 x 3) / (2 x 3)]

G = (2/10 - 3/10) - (1/6 - 3/6)

G = - 1/10 - (- 2/6)

G = (1 x 3) / (10 x 3) + (2 x 5) / (6 x 5)

G = 3/30 + 10/30

G = 13/30

H = 1/5 - 3/5 x 1/6 + 1/2

H = 1/5 - 3/30 + 1/2

H = (1 x 2) / (5 x 2) - (3 x 1) / (3 x 10) + (1 x 5) / (2 x 5)

H = 2/10 - 1/10 + 5/10

H = 7/10 - 1/10

H = 6/10

H = (2 x 3) / (2 x 5)

H = 3/5.