Hello #
A =
4/36 + 2/4
= 1 1 / 9 + 1 / 2
= 22 / 18 + 9 / 18
= 22 + 9 le tout sur 18
= 31 / 18
B = 6 / 10 + 9
= 3 / 5 + 45 / 5
= 48/5
C = 4 / 49 + 2 / 7
= 4 / 49 + 14 / 49
= 18 / 49
D = 3 / 2 + 5 / 2
= 8 / 2
= 4
E = 8 / 4 - 1 / 24
= 48 / 24 - 1 / 24
= 47 / 24
F = 8 / 7 + 5
= 8 / 7 + 35 / 7
= 43 / 7
G = 1 - 3 / 10 = 10 / 10 - 3 / 10 = 7 / 10
H = 5 / 2 + 1 = 5 / 2 + 2 / 2 = 7/ 2
bonne journée
